STUTTGART, Germany — Five decades ago, Porsche opened one of the most significant chapters of its history: it launched the original 911 Turbo. Genuinely racing-inspired, the first Turbo still ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Audi’s A5 sedan and Q5 SUV families—including the zippier S5 and ...

Twin turbochargers have their pros and cons, and two main setups try to maximize the pros. Here's the difference between ...