Here’s a look at seven of our favorite secret V-12 prototypes and other one-off models, and our take on how they could have changed the automotive world if they’d been allowed to enter production.

The Honda Africa Twin Adventure Sports ES has a massive 6.6-gallon fuel tank that makes it an easy 300+ mile muncher.

Here's an American cruiser that pays tribute to West Coast custom styling while being brilliantly versatile on the road.

The most powerful three-cylinder road-legal engine is just 54 hp shy of toppling the most powerful six-cylinder engine of ...

Luckily, I didn’t end up witnessing what ER doctors call “donorcycles” or “mobile organ donors.” Helmet laws are in effect in ...

The Honda CBX1000 featured a 1,047cc inline-six engine that sounded like Formula One cars. Despite commercial failure, it's ...

Motorcycle engines tend to be much smaller than the ones used in vehicles. Bike engines also use motor oil to both cool and ...

I'm not the first to ask this question, especially since sportscar maker Ariel announced the Atom 4RR nearly a year ago. But ...

LONE OAK, Ky. (WSIL) -- A woman is facing multiple charges after deputies say she intentionally hit her boyfriend with her car while he was on a motorcycle. Deputies and detectives with the McCracken ...

A 41-year-old man was killed in a crash involving a motorcycle and a car on Roosevelt Boulevard in Northeast Philadelphia Monday afternoon, officials said. Accroding to police, the deadly crash ...

Photo: Honda Motor Co., Ltd. Carmakers have used engines designed for motorcycles on cars on many occasions, yet in terms of sheer spectacle, the five models we’ll rediscover in this article are among ...

Black Morgan 3 Wheeler with male driver - Rodin Eckenroth/Getty Images Cars come in many shapes and forms. Engine locations, gearing ratios, drivetrain layouts, seating configurations, cylinder counts ...