thirty seven percent
It depends
There is not an eact number of idiots that leave their cars in space unless they came from jupiter
Bad Aerodynamics.
cheat-SEAWAYS
Expensive, and will save very little energy. Not practical.
The aspects of cars that people tend to find amazing are it's roofs, spoilers and the design and shape of the wheels. Also, the paint of the cars is one of those things which impresses people the most.
Floating cars are a thing of the past. They never did catch on big enough to become a profitable industry. However, you can still buy them, there are still some being produced today.See the links below for some history and some currently available models.
So your hair doesn't get wet when it rains. Also helps keeps your head/arms attached if you decide to go inverted.
If they can create a gravitational stabilizer, without that it wont stay in the air floating/hovering
he was putting roofs on cars when acdc called him up
Roofs