I have a ke55 corolla which has been stripped and a rollcage put in it for speedway made out of 38mm round tube. It has aluminium door panels, fibreglass bonnet and mud guards. It has a 3K 1200cc motor that has been bored out, new lumpy cam, new pistons, new valves and valve springs. It is all to comply with the speedway rules. It sounds great and goes real good.