Last year, NASCAR finally unveiled a prototype ... continuing to test, learn, and explore new technologies that could be applied to both race programs and production cars." In other words, it's ...

For example, we recently tested a prototype of Mazda’s upcoming SkyActiv-X vehicle. It’s exciting and easy to get carried away with the task of testing something that won’t be put into a ...

The latest lightweight prototype of the company is significantly lighter than its first Model A test vehicle, and it also sports thinner wheels to shed more mass, overall contributing to improved ...