Mercedes-Benz CLS 63 AMG accelerates to 100 km/h in just 4. 0 seconds, while speed limiters are at a mark of 250 km/h. These are the standards of professional security in Germany, as in European countries as a whole. Against this background, the fuel consumption indicators look relatively good — about 9, 9 liters per 1 km/h along the highway. By the way, this is more than 10% more than the previous version of Mercedes-Benz CLS. This is primarily due to the use of Start & Stop technology along with an updated engine.