well, the obvious answer is a car that has fundamentally remained unchanged through most of our lives...
ie the original defender (I had one and for me is not for ever, but for some it is)
But the true forever car, for those not too cool to have one... is a caterham....
I believe thats as close as I will ever get and I have never driven anything more fun, if we simply take fun as getting up at 5.xx am and going for a 4 hour drive and not worrying about KEF crap, frunk space, security, kids seats, wheel gaps, lumber support, road noise, wind, rain, suburn....etc etc..
I think many have forgotten what real fun is and I myself still think (to myself...no one else will listen at this point) that when the Caterham arrives, IF the EMIRA is parked next to it, the sun is out, or not, its the weekend and early, there are plenty of cyclists out there to "aim" at, would I take the heavy, fat, tall, slow, comfortable, good? sound systemed Emira, or the motorbike on 4 wheels. I mean, if I dont care what the occasional female I pass by thinks of my car, I would 95% of the time be taking the Caterham. This is turn makes me ask myself..... why get the damn EMIRA....? I thought to help Lotus out, but they need a lot more than just my help.... They need to help themselves first