Car Magazine has some new intel on the upcoming Mercedes-Benz E-Class, expected to go on sale in 2016. They report the next-generation model will use the MRA (modular rear-wheel drive architecture) which currently underpins the current S-Class. The next E-Class will also use much more aluminum which Car reports cuts around 70 to 150 kg (about 154 to 330 lbs) from the total weight.
But the big story is a return of the inline-six. The report says Mercedes-Benz is going with this design due to how inexpensive they are to build and how closely they are related to Mercedes' family of four-cylinders. The first inline-six is expected to be a twin-turbo 2.9L diesel six with 313 horsepower. Other gas, diesel, and hybrid powertrains are expected to follow from there.
The model lineup is expected to stay the same with a sedan, coupe, cabriolet, wagon, and the CLS sedan and shooting brake.
Source: Car Magazine