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.

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.

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 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 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…

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 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.

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 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.

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.

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.

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.

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.

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

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.

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.

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 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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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

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