A test mule of the BMW M4 GTS was caught at the Nurburgring. The car stands out from the others, by its large rear spoiler. The official debut of the M4 GTS will take place at the Frankfurt auto show in September.
The car will be equipped with a 3 liter six-cylinder twin turbo engine that produces close to 500 hp with 600 Nm of torque, that enable it to do the 0-100 km/h in about 4 seconds.
