BMW M’s top model – the M4 GTS – makes an appearance at the 2016 Chicago Auto Show. The street-legal racing car M4 GTS will go on sale in the U.S. in April and the limited run is already rumored to be allocated to customers.

The BMW M4 GTS makes use of the multi-award-winning M TwinPower Turbo engine with 493 hp, a 0-60 mph time of 3.7 seconds, water-injection and manually adjustable shocks – the M4 GTS is ready to munch almost anything that comes to the track.

This Special Edition M4 GTS recorded a lap time of 7 minutes 28 seconds around the legendary Nürburgring-Nordschleife, the world’s most challenging race circuit.

BMW-M4-GTS-Chicago-Auto-Show-1

The standard M4 Coupe equipped with DCT and ceramic brakes lapped the famous Nurburgring in just 7:52 minutes, slightly behind the E46 M3 CSL (7:50) and the M3 GTS (7:48). The predecessor E92 M3 ran around the same track in 8:05 minutes. The previous special edition M3, the GTS, recorded a Nurburgring time of 7:48 minutes.

BMW-M4-GTS-Chicago-Auto-Show-6

RELATED: BMW M4 GTS: Is it worth the price?

Sapphire Black metallic, Mineral Grey metallic, Alpine White and Frozen Dark Grey Metallic are the only colors offered for the M4 GTS. One style of wheels is offered as well – M Star (Style 666M) 19-inch front wheels (9.5 J x 19) and 20-inch (10.5 J x 20) rear wheels, painted in Acid Orange and wrapped in the Michelin Pilot Sport Cup 2 tires (front: 265/35 R19; rear: 285/30 R20).

BMW-M4-GTS-Chicago-Auto-Show-7

Standard equipment includes the iDrive Navigation System, adaptive LED headlights, OLED taillights, PDC front and rear, BMW Individual high-gloss Shadow Line trim and M door sill finishers, an M footrest, an M gearshift lever, M-specific circular instruments with white graphics, an M sports steering wheel in Alcantara.

BMW-M4-GTS-Chicago-Auto-Show-12

BMW will only be developing 700 units of the M4 GTS, with only 300 making it to the North American market. Those are very low figures, even lower than the those of the Porsche 911 GT3. When something is rare, it becomes more valuable, obviously. The BMW M4 GTS will be very rare.