This 1990 Audi Coupe Quattro was purchased new by the seller’s mother and has spent its life in California and Nevada. The car is finished in Pearlescent White Clearcoat Metallic over Graphite leather upholstery, and power comes from a 2.3-liter inline-five paired with a five-speed manual transaxle and Quattro all-wheel drive. Additional equipment includes a locking rear differential, 15″ Speedline wheels, heated and power-adjustable front seats, a sunroof, automatic climate control, cruise control, and a factory cassette…