Converted the Matchbox Jaguar XK-150 to slot using a Tyco Magnum 440 Chassis and the 59 Dodge Police car with an Autoworld 4 gear chassis.Despite the weight of the metal bodies,they both are very fast!
It's cool but i fear that stainless steel plates must be put under the exhaust pipes to prevent paint damage.They can be contoured to fit the curvature of the body perhaps made of diamond plate.