The Polaris Slingshot is a controversial machine. Thanks to its three-wheeled configuration, it straddles a fine regulatory line between motorcycle and car, thus causing consternation with certain ...

Forbes contributors publish independent expert analyses and insights. I cover luxury automotive, motorcycles and related topics. This article is more than 5 years old. Ever since its launch in 2015, ...

The Polaris Slingshot is rewriting the rules. The federal government says the new three-wheel speed demon is a motorcycle, but the states have their own ideas. California lets you operate it with a ...