Jim O’Donnell

Automakers all over the world are adapting their engine strategies to the need for higher fuel efficiency and lower carbon emissions. From mass-market to high-end luxury, engines are getting smaller and more efficient, using direct injection and turbocharging to wring higher power from lower displacement. The latest maker to unveil new engines is BMW, which took the wraps off its brand new four-cylinder engine with TwinPower Turbo technology earlier this month. Thanks to its 240 horsepower and 260 pound-feet of torque output, it provides comparable performance to the automaker’s...