2012 W212 E550 to get M278 twin turbo V8 with 402 horsepower - E class will offer two turbo V8 options
Hot on the heals of the reveal that the E63 AMG would be making the switch to the M157 turbo V8
, Mercedes has announced that the E550 for 2012 will receive the M278 4.7 liter direct injected V8 turbo. This motor produces 402 horsepower and 443 pound-feet of torque at 13 psi. What is interesting is that the BMW 550i produces about the same horsepower from 4.4 liters at only 10 psi. Audi will also be putting a turbo V8 in its upcoming S6 so the competition in this segment is going to be quite interesting.