RichardS noaccess@invalid wrote:

Certain classes of drag cars have long used ethanol ("funny cars", ISTR), so
there must be considerable performance gain from using it. Is it just
legeslative pressure that stops it being widely promoted as an alternative?

"Indy Cars" use methanol as a fuel. When it comes to racing there are
also issues surrounding the safety of the fuel and the risk of
spillages. The engines of such cars are specifically designed for the
fuel in question and only intended to last to the end of the race. Which
in the case of drag racing is measured in seconds.