We already knew that the upcoming Porsche Boxster/Cayman will get a four-cylinder boxer engine but according to the latest reports it appears that the German carmakers is planning horizontally opposed four-pot powerplants as small as 1.6-liters. Car Magazine says that the new engines are already on the drawing board and as expected the new motors will be more fuel-efficient and cut CO2 emissions.
Still, the good news is that the new engines will keep a genetic link to the iconic flat-six engines used by the Porsche 911 for decades. Porsche already uses a new V4 engine on the new 919 Hybrid Le Mans racecar.
The 1.6-liter flat four engine is expected to deliver 210 hp, while the 2.0-liter flat four will develop 286 hp and 400 Nm (295 lb-ft). The most powerful engine will be the 2.5-liter flat four, which delivers around 360 hp and up to 470 Nm (347 lb-ft) of torque.
The first vehicles expected to get the first flat four engines are the Boxster, Cayman and Cayenne. The engines will be offered with a six-speed manual transmission or a seven-speed dual-clutch PDK.