Sideways Ford Mustang Zakspeed Slot Car. RCSW46 is a model of the Group 5 Ford Mustang Zakspeed Turbo. This Miller Beer backed car was driven at the Sears Point round of the IMSA Camel GT series in 1981 by Klaus Ludwig . The adjustable sidewinder chassis features a separate motor mount fitted with a 20.000 rpm flat 6 motor. Most of the parts are supplied by Slot.it.