One of mine from a recent meeting - probably frowned upon by the Mardave purists for being used for Banger Racing - but reasonably modified under the shell to make it handle better and hit harder
Tyres - Jap Meds and 46's - no fancy additives. G2 motor and 4300 cells. Modified top deck and chassis bracing. As long as it's quick enough to run someone in before they do it to me I'm happy.