I've been looking around on the forum, and often i find threats with 'hybrid cars', so as the title says; what is a hybrid car?
Is it like the I-Miev etc or have i misunderstood?
A hybrid in the instance of GT5 is a car that has been modified using means other than what is available in game or Hacking. Do not ask how it is done I do not know and those that do know risk punishment that could go as far as banishment. Save your time and stress and just don't ask because we wont tell here.
If it doesn't have a wing, then yes(the top comes when you install the wing on this one car). They come in a variety of forms, from one car's body on another's chassis, to changing colors of unpaintable cars, to cars with artificially enhanced power or grip. I'm not sure if all the things you can do have even been discovered yet(or how long it will before PD manages/decides to stop it if ever).
There are quite a few threads if you look around the forum discussing the value and morality of these cars, as well as people showing off the various things they have done. Just no discussion of how to accomplish it is permitted here.
