Car appreciation... the aesthetics, the engineering, etc

Too late now but my ex boss bought a 25k 996 turbo which was worth 35k 18 months later. Plenty of examples of that sort of price jump with that car, and they're only going up more now.

E46 M3 CSL, my friend bought his at £25k. Sold it in 2016 for nearly £50k. Minters are reaching 60k.

E39 M5s are on the way up, if I'd bought one 2 years ago, I'd have already made £5k in value, although probably spent that on maintenance. In the next 2 years I see them going up heavily.