New BMW M135i vs old M140i! The all-new BMW M135i! It’s the successor to the supremely popular M140i, but with a change from a 3.0-litre six-cylinder turbo to a 2.0-litre four-cylinder turbo, coupled with the introduction of front-wheel drive.

Is the M135i a worthy replacement? Join Mat for his latest review to find out! Leave a comment below and follow us also on Facebook!