In article ,
The Natural Philosopher wrote:
OK, so just how much does the air compress around a car at 70MPH?

depends. Maybe a few PSI.

Ask McLaren.

Or an aircraft designer. Enough to create a pressure difference big
enough to keep a plane up.

Planes have wings specifically designed to produce lift. Only the most
stupid card designer would use the same effect.

--
Small asylum seeker wanted as mud flap, must be flexible and willing to travel

Dave Plowman London SW
To e-mail, change noise into sound.