I had made an old style car for my old style scene, placed them in the scene and did a render, which took forever, and it has a rather low AA setting, so its not as crisp.
Wonder about the scale of the cars, they look alright, maybe a bit big? Need to add more detail to the left side now, and the background. Getting there.
Just saw Up, and they stole my car in one of the shots at the start... i should probably be in the credits.