Introduced for the 2007 model year, the 328xi was a variant of the E90 BMW 3 Series. The 328xi, which was based on the E90 328i, was offered in sedan (E90), station wagon (E91), and coupe (E92) body styles. These cars were powered by BMW's N52B30 engine, which was a 3.0L inline six engine that generated 228hp. This engine sent drive to all four wheels via manual or automatic transmission options. In 2009, BMW changed their naming convention, with their all-wheel drive cars being known as "xDrive," no longer using the "x" in the model series name. Production of the E90 328xi lasted until 2013, when the model series was discontinued.