It is tough to think of any vehicle, no matter its number of wheels, which offers a greater number of grins-per-mile than the Polaris Slingshot. Sure, it is wildly impractical and bonkers to look at, ...

The Polaris Slingshot is an odd vehicle because it’s a roofless trike. The lack of doors and the small windshield provide an open-air experience similar to riding a motorcycle. However, occupants sit ...