In 1923, BMW introduced the air-cooled R32 opposed-twin engine that would become the company’s trademark design for nearly a century. Many iterations later, the boxer engine finally evolved into a new liquid-cooled version that powers the latest R1200GS adventure bike – and other models yet to come. BMW prides itself on unique engineering solutions, and over the decades the German company added entry-level singles like the G650GS, parallel-twin models including the F800GS adventure bike and F800GT streetbike, transverse fours like the K1300S sport tourer, and even C600 Sport and C650GT premium scooters. The HP4 boxer and screaming S1000RR, which excels in World Superbike racing, prove the company can also deliver incredible performance. But perhaps the most audacious BMW motorcycle extant is the luxurious six-cylinder K1600GTL, a technological tour de force for the most discriminating touring riders.