It depends you can correct it a variety of ways. best way is to go into photoshop just try and fix it with curves and such IMO.

Unless you shot in RAW, but it doesn't seem like it.

This would be much better IMO if it was shot on an overcast day. The lighting is soo harsh, the shadows are what your camera exposed correctly for, so That's why the roof is blown out.

One day you should stop your car and get closer! Maybe get a few shots through the window or something XD.

Not bad, cool to look at. You should do more.