California fights America's worst smog with the country's toughest environmental regulations. But is the Golden State really ...

Edison Motors, a Canadian startup, is pushing the boundaries of freight transportation with Topsy, a hybrid semi-truck that ...

The Ventrac 4200 XVD ran a pre-emissions turbocharged diesel engine that went away when the EPA ushered in Tier 4 regulations ...

Cummins diesel engines power a lot of heavy-duty pickups, but which specific models come with one? Can you buy the engine on ...

With fences and foliage gone after the Eaton fire, project cars and backyard fixer-uppers have been put on prominent display in Altadena.