Polaris Slingshot vs. Can-Am Spyder F3-S vs. Morgan 3 Wheeler

The GM-sourced (yes, it’s a car engine) 2.4 liter Ecotec produces a claimed 173 crank horsepower at 6200 rpm and 166 ft-lbs. of torque at 4700 rpm. “Sean likened its engine noise to a vacuum cleaner, but I thought it sounded decent for a run-of-the-mill four-cylinder,” says Duke. “It’s sportier than I expected.”