In its time, BMW has made some iconic engines. From hyper-efficient three-cylinders to massive V12 monsters in M Performance and luxury cars, there's really something for everybody. If you're shopping ...

Car enthusiasts of a certain age may feel particularly dated by the following fact: the first two powerplants to mark BMW's mass-market adoption of twin-turbo engines are about to start turning 20.

The enthusiast world loves inline-six engines - engines with six cylinders in a row - and BMW is an example of an automaker with a long history of inline-sixers. As we'll see later, the format has its ...