Marshall Brain's Blog

I would buy one of these cars in a second, but I bet they are illegal in the U.S. Motorcycles are far more dangerous and legal, but this car will be illegal because it has four rather than two wheels. Why?
 

I don't know what was cooler, the car, or the guy's face as it fluttered in the wind and g-forces.
 

How can it accelerate that fast on those skinny tires?
 

Motorcycle tires only have have a very small area that is in contact with the ground due to their rounded profile, so technically this vehicle has more tire surface area than a motorcycle.

I also seem to remember something from a intro physics class about increasing the total amount of tire against the road does not increase total traction. Or something like that...