The BMW N63 engine was launched in a mid-sized luxury what?
BMW N63 The BMW N63 is a twin-turbo DOHC V8 engine which has been in production since 2008 to present. It is the world's first production car engine to use a "hot-vee" layout, with the turbochargers located inside the "V" of the engine. It is also BMW's first V8 engine to use direct injection. The N63 was launched in the 2008 BMW X6 xDrive50i.
Mercedes-Benz W186 The Mercedes-Benz W186 model 300 was a four-door luxury tourer produced by Mercedes-Benz between 1951 and 1957. The company's largest and most prestigious automobile, it was the Maybach of its day, elegant, powerful, exclusive, and expensive. Three versions were produced in succession, known informally as the 300a (or simply 300), 300b, and 300c. An enlarged "300d" variant built on the W189 chassis succeeded it in late 1957.