Subaru's WRX, Ascent, and Outback are the only new US models with a turbocharged flat-four boxer engine — and the WRX also ...

Flat engines are horizontally-opposed piston engines, and this group includes Boxer engines, but not opposed-piston engines like the Cummins 14.3L Advanced Combat Engine (ACE) designed to power tanks.

RUF debuted a flat-eight engine called the B8, wherein B stands for boxer and 8, obvs, for the cylinder count. The 4.8-liter twin-turbo boxer-eight makes over 1,000 hp. It’s technically just a ...

Ruf Automobile has built an engine with eight cylinders and much horsepower. It’s called the ‘Boxer-Eight’—or B8 for ...

The plastic cover of a Subaru Boxer engine showing the Subaru constellation logo - Topuria Design/Shutterstock Flat engines are horizontally-opposed piston engines, and this group includes Boxer ...