4 Automakers Revive Inline-Six Engines With Up to 550 HP as Efficiency Push Grows
Updated
Updated · SlashGear · Jul 11
4 Automakers Revive Inline-Six Engines With Up to 550 HP as Efficiency Push Grows
2 articles · Updated · SlashGear · Jul 11
Summary
Mazda, Stellantis, Mercedes-Benz and Land Rover are expanding new inline-six lineups, signaling a broader return of the engine layout in SUVs, pickups and performance cars.
3.0- to 3.3-liter inline-sixes are being paired with turbocharging, 48-volt mild hybrids or PHEVs because the layout uses fewer parts than a V6, runs more smoothly and cuts energy losses.
550 horsepower now tops the group in Stellantis' Hurricane for the Dodge Charger Scat Pack, while Mercedes' M256 Evo reaches 503 hp and claims about 15% better fuel economy than its previous V6.
Mazda's first inline-six in its 106-year history makes 280 or 340 hp in the CX-90, CX-70 and CX-60, underscoring its push to move further upmarket against German and British rivals.