9. Porsche 959
Porsche is notorious for fake horsepower ratings. For decades now, the famous German sports car brand has lied about underrating power on their cars. The reason is simple. Just like Ferrari, Porsche is eager to win every magazine test. S they always claim less power so acceleration figures and top speed seem more impressive. It is a cheap trick, but it works. Porsche’s trend of lying started in the mid-’80s with the legendary Porsche 959, the most advanced sports car of its era. Basically, the 959 was a laboratory on wheels and a fast one for that matter.
Porsche installed a twin-turbo engine from Le Mans-winning racecars into the 959 and claimed the car produced 450 HP. The number was impressive for the period and good enough to fight the Ferrari F40. But since the engine was already known, many insiders claimed the 959 produced more than 500 hp. Since the 959 is so rare, we may never know the truth, but racecars with the same engine did deliver over 500 hp. There is reason to believe the legendary 959 is more powerful than the factory said it was.