In a recent interview, AMG boss Tobias Moers told Autocar that the hot new A-Class "will be the most powerful again" when it makes its debut this Autumn. The British publication says as much as 380 hp is to be expected.
In reality, the 2015 Audi RS3 may still be faster. Experience matters and the quattro simply have more of it.Audi has been making hot hatchbacks for far longer than BMW or Mercedes. This clearly shows in the way the RS3 is put together. Knowing turbo lag would hamper the drivability, they stuck with their 2.5-liter setup instead of downsizing to a 2-liter, which they could have easily done.
As a result, the new baby RS is amazingly quick off the line, thanks also to its new 7-speed twin-clutch gearbox and Haldex coupling. It achieves 0 to 100 km/h times of 4.3 seconds, noticeably faster than the 4.6 seconds of the A45. Will increasing the boost pressure make the A45 AMG faster? Probably not.