Talk:Mercedes-Benz GLC Coupe/@comment-221.149.120.245-20170725153453/@comment-27736210-20170727140714

Ok, I have found the best tune:0404 0000 XXXX

This gives you the biggest TK bonus possible.

From here, simply Elite-Tune the car up or down at your choosing. The car will be going at the maximum possible speed for its rank.

The Tuning Kit bonus gets retained even when downgrading the car, so don't hesitate to fight at low leagues with this config as well. (only hesitate if you see Porsche 959s)