The W10’s cylinder heads were also initially made ... As an aside, SWR also apparently produced the 1.4-liter, twin-turbo V6 that powered the Brabus version of the Smart Roadster.

Let me ask you a question: Have you ever heard of a W10 engine? Not a V10 or a W12—a W10. Supposedly, Volkswagen made a few prototypes, but that was decades ago. Now, an experimental W10 has ...

Yesterday, we asked for help unraveling the mystery of a W10 engine thought to be a lost VW prototype from the early 2000s. Today, we got a surprising lead that doesn’t just link the engine to ...