Ive bought and sold a few of the classics in the series (similar ones that is not the actual TV ones featured). Although I like the show I've no idea where he gets his prices from. His sale prices are in the right ballpark (although usually not if only the work listed has been carried out) but his purchase prices are in the land of dreams.
Mini for £600 with tax and MOT, no rust just needs a paint job - not possible in the real world (£1200 approx)
TR6 for £6000, mechanical strong and no rust or paint issues - about 50 -70% out (£9-10000)
E type for £13k - no no no (20K start price if you're lucky)
notice how they can get a respray for £1000, or their refurb wheels end up with new tyres too. My biggest bug is reusing old nuts and bolts, it's just not what happens.
still think it's one of the best 10 prigs on TV, but I don't watch that much.
I know of a couple of their cars in the real world and they are not great and needed a lot of work to make them reliable.
the Z1 was on ebay earlier in the summer for £21000