The Mercedes direct-injection engine can still operate in a lean-burn stratified mode at speeds in excess of 120 km/h(74.56 mph). When driving on main roads and motorways at largely constant speed and with proper anticipation, the CGI engine outperforms the fuel economy of the six-cylinder engine with conventional injection technology by up to 1.5 litres per 100 km, a saving of approximately 15 percent.
Low fuel consumption and excellent power delivery are not at odds with each other on the second-generation Mercedes-Benz direct petrol injection model. On the contrary, the engine delivers 15 kW/20 hp more power than the conventional-injection V6 and four percent more torque. Thus the CGI engine combines its excellent fuel economy with a level of effortless driving enjoyment that is unprecedented in the six-cylinder segment. This allows the new CLS 350 CGI to accelerate from zero to 100 km/h(62.13 mph) in just 6.7 seconds on its way to a top speed of 250 km/h(155.34 mph) (electronically limited).
The range of engines for the CLS-Class now includes two eight-cylinder engines with high output and torque. The CLS 500 will be equipped with the 285 kW/388 hp V8 engine from the S-Class, whose output surpasses that of the previous eight-cylinder unit by about 26 percent. At 530 Nm the engine’s maximum torque also exceeds that of its predecessor by around 15 percent. The new CLS 500 accelerates from 0 to 100 km/h in just 5,4 seconds, 0.7 seconds faster than the previous model.
Mercedes-AMG has developed the new CLS 63 AMG, which is powered by a 378 kW/ 514 hp V8 naturally aspirated engine. The new vehicle’s output has been increased by 28 kW/38 hp compared to the predecessor model, the CLS 55 AMG.
An all-new V6 diesel (165 kW/224 hp) will meanwhile increase the maximum torque of the CLS 320 CDI from 376 lb/ft to 398 lb/ft.
All of the CLS engines will be combined with the 7G-TRONIC seven-speed automatic transmission, which comes as standard equipment. What’s more, manual gear switching will be improved as a result of optional new gearshift paddles conveniently located on the steering wheel.
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