F1 cars can create over 1300 pounds of down force when at speed, with just a spoiler front and back...

The advantage of the fan would be constant down force at all speeds...but I tend to think spoilers are more economic on power consumption...

That fan solution sounds like a typical seventies thing...

Back in those days you could see some pretty strange contraptions running around in F1 also... how about 4 wheels at the front end of the car instead of 2...Racing can produce some pretty strange stuff...

The more the FIA outlaws things to reduce speeds, the faster these cars seem to be going....it's a never ending saga...