Initially, the 5 Series was only available in a sedan body style. The wagon/estate body style (called "Touring") was added in 1991 and the 5-door fastback (called "Gran Turismo") was produced from 2009 to 2017.
The first generation of 5 Series was powered by naturally aspirated four-cylinder and six-cylinder petrol engines. Following generations have been powered by four-cylinder, six-cylinder, V8 and V10 engines that are either naturally aspirated or turbocharged. Since 1982, diesel engines have been included in the 5 Series range.
Since the E28, all generations of 5 Series have included an "M" model, called the BMW M5.