Fifty years after its debut, Audi’s five-cylinder gets a limited RS 3 tribute with upgraded suspension hardware and new design details ...

This is the Audi RS3 competition limited. To no great surprise, it is a limited edition of the RS3 competition that’s been built to celebrate 50 years since Audi first slotted a five-cylinder engine ...

However, not all innovations are equal, and nor do they follow a constant upward trend. Instead, their evolution takes the form of an S-shaped curve that reflects their typical lifecycle from early ...

Engineers have been trying to perfect variable-compression engines for almost as long as engines have existed. So far, though, only Nissan has succeeded in bringing one to production. Its Variable ...