The BMW Concept M4 GTS builds on the BMW M4 Coupe's dynamic use of forms. The manually adjustable front splitter and rear wing - both in exposed carbon - ensure perfect aerodynamic balance and allow the BMW Concept M4 GTS to be adapted for both individual race tracks and for use on the road. Another example of the engineers' rigorous adherence to lightweight design is the CFRP (carbon-fibre-reinforced plastic) bonnet, which lowers the car's weight and centre of gravity further still. A wide front air intake optimises airflow and minimises front axle lift.

The dynamic and exclusive presence of the BMW Concept M4 GTS is accentuated by the exterior paint shade Frozen Dark Grey Metallic, with the Acid Orange accent on the front splitter creating an effective contrast. The lightweight, forged and polished light-alloy wheels in 666 M styling also feature an Acid Orange accent. The 9.5 J x 19 (front) and 10.5 J x 20 (rear) wheels are fitted with Michelin Sport Cup 2 tyres (265/35 R19 at the front, 285/30 R20 at the rear). The mixed-size tyres provide the ideal conduit for the stand-out dynamic attributes of the BMW Concept M4 GTS..