The Driving Sports team braves a torrential downpour to test how a modified 2009 BMW 135i stacks up against a brand new 2011 model. Can the N55 twin-scroll single turbo outperform a N54 twin turbo?
Video Rating: 4 / 5
The Driving Sports team braves a torrential downpour to test how a modified 2009 BMW 135i stacks up against a brand new 2011 model. Can the N55 twin-scroll single turbo outperform a N54 twin turbo?
Video Rating: 4 / 5