22. Audi Quattro
Back in the early ‘80s, the Audi was just an upgraded Volkswagen with not much to offer. Then, the motorsport department proposed entering the rally championships with an innovative all-wheel-drive model they named the Quattro. Suddenly, Audi had a championship-winning car at the forefront of two new technologies, an all-wheel-drive system and turbocharging. This resulted in rising interest in the company as well as the global success of Audi as people know it today.
The Quattro Sport featured a 2.1-liter straight five-cylinder engine with a turbocharger and 306 HP in street trim. With a short wheelbase, light body panels, short ratio gearbox, and 306 HP, the road-going Quattro Sport was capable of achieving 0 to 60 mph in just 4.8 seconds. Despite that, Audi only sold several hundred examples in America. Sadly, the Quattro flew under the radar of most domestic enthusiasts.