racing at most levels is highly regulated and innovation pretty much stifled. NASCAR almost ended themselves with the Car of Tomorrow and jellybean clones running down the tracks. About as much fun as watching IROC racing where cars were identical. The idea of subtle differences leading to a win is the source of drama and at times is very welcome in the sport

In other racing, the Nissan Deltawing racer has raised a ruckus, small engine yet very competent racer.

When tenths count its best to get as much of them from racer and pit screw skill which increases enjoyment of the fans and teams alike.