Economy has been improved in the new E-Class, the 2.2 litre E250 uses a smaller diesel engine than the E280 it replaces, and the motor has more pulling power and uses 23 percent less fuel. There are lower powered versions of the same engine in the E220 and E200 and they achieve 53.3 mpg. Twenty percent has been shaved off the fuel consumption of the petrol engines; the E200 will now do 41.5mpg.
The E Class is the first car in the world with a system that stops drivers nodding off at the wheel. Sensors measure how drivers use the steering wheel; the computer decides if the driver has got all their wits about them, if it decides they haven’t it sets off an alarm with a flashing cup of tea symbol.
Every E model will be equiped with Mercedes's 'BlueEfficiency' Modifications.