Viola, a rudimentary depiction of the boxer engine layout. You can see why it's also known as the horizontally ...

One splays out the pistons in a fan shape, adds a cylinder to the traditional design. For decades BMW's motorcycles were easily identified by the two opposed cylinders sticking out of each side of ...

While most engines made in the last 100 years have adhered to the standard single-piston per-cylinder design, the TS3, also known as the "Commer Knocker," is an exception. The opposed-piston ...

The mega-sized S2000 luxury tourer has been launched as a rival to the Honda Gold Wing and is powered by the world’s only horizontally opposed eight-cylinder engine. The in-house developed 2 ...