As part of the F Series range update in 2006, the BMW F 800 S sports bike and BMW F 800 ST sport-touring models were introduced, both powered by a Rotax parallel-twin engine. The BMW F 650 GS and BMW F800 GS dual-sport bikes were added to the range in 2008, both using the same 798 cc engine, despite the different names and the F 700 GS replaced the 650 in 2012. In 2009, the BMW F 800 R naked bike was introduced and in 2013 the BMW F 800 GT replaced the "BMW F 800 ST" sport-touring. In 2009, the BMW G 650 GS replaced the "BMW F 650 GS".