It develops 133 hp per liter and is the only six-cylinder to combine turbocharging with cylinder deactivation and stop/start technologies in order to conserve fuel. When full power isn’t being utilized, this engine will essentially run as a 2.0-liter V4. It’ll be paired to an also all-new eight-speed automatic transmission. For the record, this engine’s output is 27 percent greater than the BMW 740Li’s 3.0-liter turbocharged inline-six (315 hp), and 29 percent more powerful than Audi’s 3.0-liter supercharged V6 (310 hp), found in the A7. Like the turbo system found in the ATS-V, the new engine’s turbochargers are lightweight.