Car reviewers and hi-fi reviewers are in some ways similar. One of my neighbors is a well-known car reviewer. He's always got something new and flashy in the driveway for review, but his personal cars are odd and quirky-Morris Minor pickup truck, 64 Volvo, E type and an assortment of other old British stuff. He does have a 69 6.3 Benz that I would buy in a minute.
K-Egg is cool, but to me, the 'classic' modern supercar is the McLaren F1 and that one has appreciated. (Never liked the Enzo, just plain ugly). Old School- 250 SWB. But now out of reach to mere mortals. You would have had to buy in 20 years ago for it to make sense.
I kept one car out of the 10 or so flashy ones that I had since 1995- it's the least flashy and hardly the fastest: a 993 C4 Cabrio. I didn't buy it as an investment but it has held its value.