Is RAM going to be the next brand that uses the Hellcat engine?

This is the Chevy Silverado HD, featuring the latest Duramax diesel engine, caught cold weather testing in Michigan.

Here's a Mustang 5.0 with a quad exhaust setup as seen on the GT350, and with a beefier rear axle.

Audi is currently working on a new generation of the Q5, which is said to make its way onto the market in 2017, with a new chassis, new look and new engines.

When Porsche unveiled the mid-cycle facelift of the current range last year, the GT3 did not receive the makeover.

Caught testing for the first time, here’s the ’17 Ford F-350 sporting base XL trim in a single-cab dually diesel configuration.

This is the ’17 Chevy Camaro ZL1 convertible, caught while cold-weather testing in Northern Michigan.

This is the upcoming BMW/Toyota sports car—purportedly the next Z4 and the revival of the Supra.

This is the ’17 Ford Fusion looking production ready ahead of its reveal at the Detroit Auto Show.

Here's a peek at a prototype of the the 500 Abarth, which will make its official debut during the Geneva Motor Show in March.