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.

• Toby Foster