Derek discovers the holy grail of Austin Mini barn finds, a rare and valuable 1965 Cooper "S" 1275cc. The car has been hidden in a garage full of rubbish for 30 years and appears to be a worthless rusty wreck, but on auction day it generates a flood…

A rare and valuable 80's Sierra Cosworth "whale tail" draws in a crowd of admiring fast Ford fans, but has the owner pitched the reserve too high? Also, Derek reluctantly decides to sell some of his own classic car collection to make space in the showroom before visiting Britain's biggest one day motorcycle event. And a restorer delights buyers with his immaculate 1966 Sunbeam Rapier and Sarah takes a shine to a quirky micro-caravan.

Derek dives into the lost Jowett marque, as a 1952 Javelin finds an unexpected home. Paul and Dave find a Ford Escort that's been untouched for 30 years.

A very orange 1970's Bond Bug three-wheeler divides opinion among Mathewsons customers but delights the Bond owners club. A retired engineer reluctantly auctions off his late father's treasured 60's Jaguar MkII. He's had the car in his garage for 30 years but hasn't been able to part with the memories it holds. The owner of a Rover P6 sells the car he lovingly rebuilt for his daughter's wedding and is philosophical despite losing thousands of pounds on the restoration.

Mathewsons agree to sell a vintage threshing machine and collection of tractors, but extracting them from a Yorkshire farm proves a bigger job than anticipated.

A Cold War Soviet classic goes under the hammer. Built like a tank, the Mosckovitch gets few admirers for style, but finds a home with a fan of Eastern Bloc classics.

Derek collects a Jaguar Mark 2 and explains why they made such poor getaway cars for 1960s bank robbers. A customer considers a Morris Marina as a Christmas present for his wife.

The team is under pressure with a record number of cars to auction, but Derek finds room for one more - a replica AC Cobra. A couple are reunited with their Volvo breakdown truck.

A classic car fan with a love of the Jaguar E-Type reluctantly sends his dream car to auction, hoping to buy a motorhome with the money. Two Ford Escorts get Dave's pulse racing.

A widow reluctantly parts with her husband's treasured collection of Rolls Royces and Bentleys, and an impulse buyer finds one of the cars a new home.

A near-perfect ‘50s Chevy panel van and a very desirable low-mileage ‘80s Brooklands Capri tempt auctioneer Derek out of Yorkshire, but traffic chaos on the way to Wales puts him way behind schedule. "I can't be late, I've got no pyjamas" ...says a worried Derek as he realises he is going to have to overnight across the border. Safely back in Yorkshire, he evaluates the cars ahead of the auction - two of the best he has seen. The vehicles' owners have high expectations, the reserves are top end - and the auction is days away. Paul picks up a stunning Matchless Model X motorbike which attracts a lot of pre-auction attention from some vintage motorcycle fans, and Derek and grandson Charlie spend the day at Stokesley Classic Car Show. It's not a relaxing day out for the pair as they've been set a monumental task - valuing the 200 classic cars.

The summer brings an increase in business for Yorkshire classic car auctioneers. To keep pace, the Mathewsons introduce their new "multiple classic collection plan", much to the amusement of office manager Sarah. Dave sets off to collect a Triumph TR6, a Lotus Cortina and a Mini Mayfair wedding car and bring them back to the auction house. The team heads to The Wirral for a rare survivor, a DAF 33 from the ‘70s. "It's a car that had a bit of an image issue back in the day, but it also had a gearbox ahead of its time," says Derek - as everyone tries to explain how it works before the car is auctioned off.

Anglophile Derek struggles to get his message across on a rare trip abroad to pick up a Bentley, while a well-restored Ford XR2 sets the auction alight.

Dave finds a very rare 70s Sunbeam Lotus that has been rotting away in a farmyard for 29 years, while a Morris Minor convertible goes under the hammer.

A delightful collection of British classics comes up for auction, including an Austin A35 and a Hillman Avenger Estate in stunning condition. An E-Type Jaguar also hits the auction.

Three MGs from the 70s turn up at the garage, still covered in original factory wax. Nobody can believe it, or value them. A Morris 1000 turns up at the auction along with a TR7 V8.

Three rare Alvises get the auction buyers going when put under the hammer. A Chevy Corvette which started its journey in Saudi Arabia makes its way to Thornton le Dale for the sale.

Dave gets a nasty surprise when he opens the bonnet of a fast Ford from the 80's, and an Austin Heavy 12 nearly a century old sets off a bidding war at the auction.

Derek, with help from the Mathewson clan, drag a mini pickup out of the barn where it's been for 20 years, and a 350cc Douglas Mark V motorbike from 1950 goes under the hammer.

Four VW camper vans pitch up at the auction house looking for a new home and Derek picks up an Austin 16 that 'goes like stink and has some unusual modern modifications'.

Derek auctions off a Jensen Interceptor and a Jensen Healey along with a one-off Wood & Pickett Triumph Dolomite Sprint and Sarah takes a shine to a four-tonne road roller which needs a new home.

A 1971 Mercedes SL and a 1989 Jaguar XJS emerge from a barn on a chicken farm, a Roller and a Rover go under the hammer and a 1966 Triumph Spitfire is restored to near perfection.

Derek takes a shine to a rare 1958 Armstrong Siddeley Sapphire with a long family history, a convertible Triumph Herald brings a few smiles on auction day and Sarah casts her critical eye over a set of wartime morale-boosting posters.

An Aston Martin DB6 in need of total restoration looks set to break the Mathewsons auction record and news of a rare Vincent motorbike arriving causes a stir.

Derek picks up some 'emerging' sporting classics from the Far East when three Datsun Zs appear, and an unusual lot arrives that run on caterpillar tracks not wheels.

Derek auctions off some vehicles that were used in the TV show Heartbeat. There's love for an Austin Cambridge and a sporty Italian number finds a new home.

A rare Honda S800 sports car from 1967 takes Derek's fancy, a couple of very different Ford Capris with long histories go head-to-head at the auction and Sarah is put in charge of looking after some stunning car mascots.

Dave tries to convince a car collector with a serious habit to let go of a few of his 70s and 80s hot hatches. Paul picks up a one-owner Morris Traveller in need of a new home and the military step in to save a very tired scout bus from the crusher.

There is a triple collection of desirable cars in store for Derek when an MG Midget, an Austin-Healey "frogeye" Sprite and a Ford RS2000 come up for auction. A BT van all kitted out for work in 1971 goes under the hammer - and like father like son, it's Dave's turn to take to the auction rostrum.

Dave's son Jack is heading out to Cheshire to collect two cars with a 35-year age difference. And luckily for Mathewsons, Lucy knows exactly what has been brought in for auction.

A 1970 Excalibur Roadstar, once owned by Roy Orbison, arrives at Thornton le Dale. Styled on the classic Mercedes SSK, it's a repli-car with a huge pedigree and even bigger 5.7 litre V8. Dexter the dog, a pedigree in his own right, needs a bigger sidecar and a 900cc Triumph Thunderbird with a matching top of the range custom built wide-bodied sidecar fits the bill. And Derek heads to County Durham to collect a 1935 Austin 7 Ulster that's been completely rebuilt.

Two iconic British classics find their way to the Mathewsons' auction room; Dave heads to North Manchester to pick up an Austin A30 and a Morris 8 E that's had an alternative paint job.

An impressive collection of five iconic cars arrives at Thornton le Dale, including a 1967 Crayford Corsair and a 1966 Ford Zodiac which emerge from a garage in Selby.

Nothing screams 1970s more than a Mk3 Ford Cortina 2000E. Derek Mathewson heads to Brigg to value a 1974 example with classic Coke bottle styling and a sweet Pinto engine.

Dave goes to Wales to bag a Sierra Cosworth, a sought-after car in the bidding market. Dad Derek gets his hands on a more sedate 1926 Standard Tourer - a quirky little motor.

Derek heads to Suffolk to collect two Bentleys with a majestic pedigree; Cynthia a stunning 1963 S3 and Harry, a 1965 Continental.

Dave heads to West Yorkshire to collect a rare 1926 Dodge bus. Derek gets his hands on a rare Vauxhall Victor VX4/90 police car that is expected to sell for more than a few coppers.

Dave heads to Bolton to pick up a classic Italian sports car - a Lancia Fulvia 1.3 Sport styled by Milan coachbuilder Zagato.

Derek rubs shoulders with pop music royalty when he picks up a Morgan sports car; a World War Two ambulance arrives at Thornton le Dale and a Ford Model T needs a new home.

The Mathewsons welcome a 1982 Audi Quattro and a Sunbeam Alpine, and Derek takes delivery of a beautiful green Renault van previously used to carry bread in Paris.

Derek heads to Scotland during a large rainstorm to pick up a Jaguar E-type and a rare MGC convertible, meanwhile Dave extracts a rare Austin Gipsy from a lock up.

There's a surprise waiting for Derek in Hull - a MGSA sports car that once had a tree growing through it. Plus, in North Wales, Alan Holmes is selling his son's Ford Escort RS 1600i.

Derek picks up a rare Ford Zodiac Farnham Estate, while Dave heads for an isolated tent in the Midlands to collect a Triumph Toledo.

Derek collects a Ford Thames 400E that once belonged to the pop band Edison Lighthouse. Plus, Dave heads to York to collect an Astra GTE convertible

A series of head-turning supercharged cars head to the Mathewson's auction room. Plus, going under Derek's hammer - a Ford Escort XR3 and a beautiful MGA.

Derek heads out topick up a pair of beautiful Swedish models - a Saab 96L and a Volvo P1800ES. Plus, a rare British AC Aceca comes up for sale.

An 1967 Aston Martin DB6 lands at the Mathewsons - Derek believes it could break the record for the most expensive car ever sold at the auction.

A collection of Austin Mini Metros arrive for auction. Also going under the hammer is a baby Fiat 850 coupe and a haulier offloads part of his vintage commercial vehicles collection.

There's an unlikely arrival at the North Yorkshire car auction - an Argentinian Army Mercedes G wagon that saw action in the Falklands War.

Derek has three scooters to collect, while also finding room for a Daimler and a teardrop caravan.

Derek's on his way to Blackpool to pick up what will be the highest priced item at the next auction. But, the 1970 Aston Martin DBS needs a tow to the local garage.

Over the years Derek has learnt to always expect the unexpected. So when Call the Midwife star, Cliff Parisi, drops off his Bedford CA campervan it's just another day at the office

Derek picks up an impressive five vehicle haul from a collector who can no longer look after his motors. Paul's out on the road too - he's collecting a rare 1972 Lancia Fulvia Berlina.

Dave picks up a 1970s Alfa Romeo that once starred in a chocolate advert. Meanwhile, Derek casts his eye over a Citroen 2CV before becoming distracted by a treasure trove of more than 270 motorbikes in the same garage.

Derek heads off to collect some vintage motorcycles from a garage at the bottom of the garden in the North-East of England. Tom Reed passed away before he could finish some of his projects, but among the treasure are two BSA super rockets, a 1925 New Hudson, a 1955 Norton 500 café racer and a Greeves trials bike. Paul has also lined up a day collecting some exceptional cars including a 1955 Ford Zephyr convertible, and back at base, Dave thinks about buying the DVLA "Repo" lorry that has just pitched up. "You can make some money with this," he says, "just use the crane, pick up the cars and off you go - job done. Trouble is it will crush the roof."

Dave finds two rare Fiats and a VW Corrado. Meanwhile Derek has his work cut out trying to remove an old Morris that appears to be supporting the garage roof. "What could possibly go wrong?" he says as he sends grandson Jack in to check it out.

Derek navigates the dry stone walls of the Peak District to collect a very original 1988 Opel Manta. Plus, Dave deals with a Ford Granada rally support vehicle.

Derek takes a long drive in a 1960s bus that has had a life in the sun, Dave helps a collector trim his fleet of British classics by taking a Triumph TR7 convertible for auction, and Paul is confused by an agricultural Bonser truck.

Dave's on his way to Grimsby to pick up an iconic 80s fast Ford, the Mk1 Fiesta XR2, while Bubbles regrets sitting in an immaculate Morris 1800 which he's now desperate to bid on

Derek picks up a lovingly restored 1925 Calthorpe motorbike that he thinks is more of a work of art than anything ever produced by Picasso. There's a barn-find Triumph TR4A and a family from Lancashire add another vehicle to their collection of Rootes manufactured cars. Meanwhile, Paul and Charlie collect a pair of veteran motors from the East Midlands.

Dave gets wind of a possible free lunch at the officers' mess when he heads off to collect a stylish Swedish Volvo P1800S from an RAF base in the Midlands.

Derek has sold everything from trucks to bicycles - but he can't remember the last time he auctioned off a two-seater plane.

100 motorbikes come in for auction from every era of the 20th century. Also, the team assess a 1965 Vanden Plas Princess with a four litre Rolls Royce engine that's seen better days.

A rusty 1970 Fiat 500 goes under the hammer - Derek reckons it's the kind of vehicle that is so iconic that it has to be saved.

Tucked away in the showroom is a WW2-era Willys Jeep. Its original condition means there might be a bunfight for a military vehicle that's ripe for restoration.

Up for auction this week is a 1980 Ford Escort, a hand-built 1946 Bedford 12 electric car, and a beautiful, red 1957 Austin Healey.

Derek collects a beautifully restored and carefully modified 1936 Wolseley 14/56. Meanwhile, a Batman-inspired Chrysler Crossfire is dropped off at the Thornton le Dale garage.

Paul's doing the pick-ups in Lancashire where a rare 1960 Vauxhall Cresta PA Friary estate in dusky pink awaits.

A vivid Dutch DAF 66 - in daffodil yellow - lands at the North Yorkshire showroom.

Paul's on a big day out collecting a 1971 Jaguar E-Type and a 1933 Morgan 3-wheeler Supersport but first there's a flock of 300 chickens to negotiate before he can load up.

Dave's in fast car heaven as he picks up a rare Subaru Impreza and an equally powerful Ford Escort RS Cosworth from North Wales.

A rare 1968 Honda N600 car emerges from a lock up in County Durham and Derek's in Scotland to collect an original RAC Bedford van.

Derek collects five beautiful veteran motorbikes from an enthusiast who's still happily riding in his 90s.

A rare and much-loved 1964 Ford Capri Consul coupe comes up for auction. Paul takes a 1957 Leyland Comet truck for a spin, and Dave admits that high on his wish-list is a Citroen 2CV.

Derek and Paul are off to Leeds on a rare father and son road trip to pick up a VW Cabriolet and a Lotus Elite.

A beautiful looking sports car has been fooling the punters and intriguing Derek. It's a Challenger E-Type - a fibreglass replica created from an E-Type mould.

Paul and Jack head to Staffordshire to pick up five vehicles from collector Rob's colossal barn, including a Mini and a Morris Minor.

Dave's in Lincolnshire picking up a 1935 Riley Falcon - a good-looking saloon car, with a pre-select gearbox.

Derek brings a small army of military hardware to Thornton le Dale including a Studebaker Weasel tracked vehicle and a WWII-era Willys Jeep.

Paul collects a cherished 1924 Rover 9 that's been in the same family since the 1950s and only had one previous owner before that.

Derek heads north to pick up a 1954 Morgan +4 coupe in mint condition and believed to be just one of three still on the road.

Derek waxes lyrical about a pristine Jaguar XJ8 and a Ford Model T van tests his driving skills.

Derek travels to the Yorkshire coast to pick up a 1963 Austin J2 Paralanian campervan described as the Rolls Royce of campervans.

Derek heads to Sunderland to pick up a real Italian beauty - a 1972 Lancia Fulvia Zagato. Red and racy, the car has seen better days, but Derek's still impressed.

Up for sale at the Mathewsons’s auction a 1275 Mini GT that’s come from just down the road that could be a future British icon.

Derek goes to pick up a veteran 1904 Swift, there’s an emotional farewell to a 1980s Beford HA van, and a Toyota Corona finds a new home.

Derek gives the once-over to a Royale Formula Ford race car, and Paul is on a marathon trip to Teesside to pick up a 1953 MG YB, a Moggy Van and an ‘80s Yamaha 250RD motorbike.

Derek travels to the Lancashire coast to pick up a rare 1972 Citroen SM, and Dave is on HQ duties and admires a Punto that's two decades old but has just 42 miles on the clock.

Derek is on the road to pick up a funky little Nissan Figaro and a sublime Ferrari 250 GT tribute car, and Paul gets to try out his spanking new Scania T Cab.

Derek checks out an abandoned 1985 Renault 4 and an MGB Roadster that hasn't seen the light of day for 36 years, and Jack heads to Rotherham to pick up a pair of rare Bond Bugs.

In the 100th episode, Derek heads to Northumberland to collect a rare 1975 NSU RO 80, Jack deals with a Mini Mayfair stuck in a barn, and an Aston Martin DBS husk is auctioned.