PHOENIX – A man was arrested after his girlfriend was killed in a collision between a go-kart and a quad vehicle in northwestern Arizona last week, authorities said. The crash occurred early Friday in ...

Rivian flew us out to Lake Tahoe to show off the crazy capabilities of its new quad-motor powertrain on both its R1T pickup truck and R1S SUV. Rivian’s original R1S and R1T were quad-motor vehicles, ...

Also, the micromobility startup spun out of Rivian, has landed a commercial deal with Amazon to supply the e-commerce company with thousands of its new pedal-assist cargo quad vehicles that are big ...

ANZA — Riverside County Sheriff’s deputies are investigating the circumstances behind a hit and run two-vehicle collision that seriously injured two men Friday, the department said in a statement ...

When we think of ATVs, we think of off-roading in difficult terrain, perhaps in a remote area, but even somewhat rugged or less developed parts of suburban metropolitan areas may not be accessible by ...