Quote from geeman1 :

I am all for nice little details like this, but there are a lot more important things to do first.

Very true.. but i was thinking it whould be something that could be done easly and rather quickly..

Perhaps it can more easly be implemented as sound alone and then later on put actual flames in?

Well the title says it all. How about some nice flames and a "blob pop pop" from the exhaust when you aggresivly down shift in the GTR class cars? Example