*Just like real estate. I would keep the car, and just buy another car. never sell. keep the 68 camaro/. I regret my parents selling their original cars, I regret giving my 87 integra in high school to my cousin.
*Test drive all of what you listed and figure out what you want instead of asking internet armchair quarterbacks. Then come back and tell us what you ended up buying.
*Consider doing maintenance yourself, that gives you more options.
Of the cars you listed above, from the perspective of maintenance….
*C6 should be fairly reliable, easy to find parts, easy to service, and plenty of support groups. And fully built ones are very interesting weapons
*430i G22 with a B48 engine should be fairly reliable, since it’s the same motor used in the Supra that Toyota vetted along with the B58. And the 8 speed ZF transmission is pretty solid and used for a long time now.Maintenance costs after 4 years, look into what is considered “normal maintenance items”.
BMW’s tend to have annoying seals that leak starting around 50kmiles+, some claim these are normal service items. They aren’t that difficult to replace yourself, but they are pretty pricey to get others to replace.
*981 fairly reliable. Mid-engines by nature are just a little more difficult to service. You can still DIY it but you’ll need to get floor ramps or quickjacks.
* f-type 3.0: also one of the few jaguar products supposedly fairly reliable.
Double check though availability of parts. Jags belong to Tata motors, so they might not part share as well as other euro cars.
Availability of parts becomes a bigger issue post-covid. I have a Brit car, and while normal maintenance parts share a lot with recent BMW M-series cars, a lot of things beyond basic maintenance comes from a limited number of UK distributors- which means there could be a parts availability issue down the road. Same could be said for Fiat/Alfa products. I do almost all maintenance myself these days, in order to guarantee the workmanship (or at least know where corners are cut)…Sometimes, especially when it comes to some BMWs, there’s nothing wrong with cutting corners- it’s a calculated tradeoff.