No, not again… The point of having “old body penalty” was discussed here, not only once. The basic designs HAVE to age, because you don’t see modern cars in the same shape as 80s or 90s ones, and there aren’t many examples of then-modern 90s cars in the same shape as 60s or 70s ones and so on. And there are reasons for that, such as safety, trends and aerodynamics. Of course there were some cars produced for 20+ years, but they WERE less safe and generally less desirable than their competitors by the end of production. This is exactly what the old body penalty is in the game. Nothing stops you from making a car that gets it maybe apart from that it often makes not much sense. Choosing SOME bodies to have that penalty later or sooner makes no sense either, as that wouldn’t be fair. That would be more limitng than the current system, as many people would just choose the body with relatively lately triggering penalty, ignoring the rest, and it would additionally need some sort of rating to choose which body has longer “lifetime” and which has shorter. And what should it be based on? Body type? The game already takes that into account in form of different penalties for different demographics. Original car production? But what if that car wasn’t produced long because its looks and safety didn’t get old, but because it was cheap, durable, simple, loved for sentimental reasons? Then the penalty should apply anyway.
What other solution do you have? Because sorry, but I don’t see any actual and clearly stated suggestion in your post. The only solutions are time and more mods - and the latter will possibly speed up coming after the UE4 update. Yes, there are too little bodies in the game, and yes, bodies usually could have more variants, but no, we cannot really do anything about that but to create more bodies ourselves.
Oh, and REALLY, pretty please, use the search function before you write some suggestion. This forum exists for quite a bit of time, and really many people here have some ideas about what that game needs. Some other threads about more or less the same things:
And sorry if I sounded harsh, but not using seach function is really a plague among new users.