Shelby Series 1 was a high-performance roadster designed by Carroll Shelby and produced by Shelby American. It was powered by Oldsmobile's 4.0 L L47 Aurora V8 DOHC engine. It has 320 hp (324 PS) at 6500 rpm, 290 lb·ft (390 N·m) at 5000 rpm and will do 0-60 mph (0–96 km/h) in 4.4 seconds and records 12.8 seconds in the quarter mile at 112 mph (180 km/h). Top speed is 170 mph (273.5 km/h) (15 mph (24 km/h) faster than the 427 Shelby Cobra).