With its blend of efficiency, smoothness and strength, the Chevrolet Colorado Duramax has us asking, "What took so long?"
The following cars represent the most technically advanced available.
Automaker says revision will fix issues related to emissions software installed on the luxury brand's six-cylinder diesel engines.
The solutions likely won't be the same in the US, but VW is making progress in Europe to remedy its emissions scandal.
The mid-size truck captured top fuel-sipping honors away from Ram's full-size EcoDiesel.
The agency wants to make sure cheaters can't rely on the same tactics that kicked off Volkswagen's scandal.
In a new filing today, the Environmental Protection Agency notified Volkswagen that it found software designed to defeat emissions testing in seven models using a 3-liter diesel engine.
German automaker also adds a vehicle ID lookup tool to its US site and suspends its head of quality control.
The German automaker is handling Dieselgate quite differently in Europe than in North America.
In the wake of VW's emissions scandal, a German environmental group says more automakers than originally thought may be skirting Europe's regulatory system.
Brian Cooley looks at new technologies that could make diesel engines a lot cleaner in the future.