Prepare yourself for some great engine sounds, then sit back and enjoy this episode of Ignition, presented by Tire Rack. Enthusiasts still put the E39-chassis BMW M5 on a pedestal. It’s arguably the best sports sedan ever made, with the perfect mix of sport and luxury, refinement and involvement. The current M5 and M6 Gran Coupes are the only manual-transmission, rear-drive, V-8–powered sedans on the market—other than the oft-overlooked Chevrolet SS Sedan. With a 415hp LS3 small-block, six-speed manual transmission, and limited-slip diff, the Australia-built Chevy has all the right equipment. But does it have what it takes to unseat the benchmark E39? MOTOR TREND Senior Features Editor Jason Cammisa brings an M5 along to find out, and with the help of SCCA Hall of Fame racer Randy Pobst, we see if the SS can beat the M5 around The Streets of Willow racetrack.