I think I saw a classic one sell for a million pounds a few years back. Interesting fact is that the reason we have motorway speed limits in the UK is because of the AC Cobra. When the M1 was newly built in the 1960s someone decided to drive down the motorway at 200mph in their new Cobra! The tabloid papers went crazy and the government implemented a speed limit of 70mph (previously there was none on motorways) and it has stuck since then. This is despite motorways statistically being the safest roads and the advances in car technology and safety since then. German autobahns are in parts unrestricted and they seem to do fine.