Chaparral 2J “Sucker Car” (Can-Am)
The 2J was the last evolution of
Chaparral’s successful 2 race cars. It was fitted with a snowmobile engine that spun a pair of fans designed to suck air out from under the car, effectively creating downforce without adding drag. A 7.6-liter engine rated at roughly 680 horsepower helped offset the extra weight added by the complex setup.
Quickly nicknamed Sucker Car, the 2J required a great deal of fine-tuning before it worked as planned. Race authorities received several complaints about it during the 1970 season and banned the car on account that it was fitted with a movable aerodynamic device.