On the plus side, the 308, 328, testarossa... they still look great. Timeless, especially the 308 and 328. That, and pop culture icons. No, definitely not super fast. A lot of other old cars are just, well, slow, without the looks or the feels.
On the down side, those cost even more to maintain if you actually drive them. Putting a couple hundred miles on em isn't too bad, but those fucking ridiculous retarded engine-out maintenance schedules are just hilariously stupid and just as hilariously expensive. Fuck that. Unless you have your own lift and crane and proper workshop and tools, I wouldn't bother. I looked into it due to the occasional low price, but I like to drive, not look... (Also, people are getting way too into buying and/or restoring the old models, so you can buy something much newer for half the price of a restored 328, which is still going to cost way too much to maintain, because the restoration didn't replace the stupid fucking things about it.)