If the hard-hitting race-spec GTS isn't tough enough for you, G-Power has the answer.
BMW tuning maestro G-Power has revealed its latest program for the BMW M3 GTS, building on the SK II "Sporty Drive" supercharger kit it launched back in 2011. Adding "TU" to the name, the "technical update" made to the supercharger results in output figures of 650 hp and 465 lb-ft of torque. This equates to a 0-62 mph time of 4.1 secs and a top speed of 201 mph. The kit comes in at a cool 23,500 Euros and can be combined with a set of 20-inch Silverstone CS forged alloys for a touch under 7,500 Euros and a set of carbon ceramic brakes for just over 25k Euros.