Back in 2002, Jaguar had to restate the power output of its engines in the U.S. because it had been using the DIN (German) rather than the SAE (American) formula for horsepower. Since 100 DIN horsepower are equal to 98.6 SAE horsepower, Jaguar’s “400-horsepower” supercharged V8 ended up being credited with a less impressive 390. (Why not 394? Apparently it… More →