Wear and mechanical history on cars in Career Mode?

Buying a high mileage car in career mode doesn't feel like a gamble. Sure automatic transmissions slip more and engine idle is rough, but what about worn suspension or brakes or tyres or synchros? What about engine damage/lost hp due to age/bad maintenance? Interiors also look brand new. Btw is paint faded on older vehicles? Not sure about that one
--- Post updated ---
Due to negligence, brake pads could be changed to cheaper/basic variant

 

Paint does have fade on cars with more miles I'm pretty sure. Or maybe it's tied to age, unsure