Prior to its debut Audi was hard at work on a turbocharged version of its 20-valve five-cylinder engine.  That 20-valve engine was available in the Quattro Coupe and 90 Quattro in normally aspirated form.  Without turbocharging it put out 162 horsepower, just two more than the turbocharged 10-vale engine.  With 20 valves and turbocharging, this … Continue reading 1991 Audi 200 20v Quattro Test Drive