Mercedes should work on improving their build quality and reliability and not just stuff everything they make with their 6.3 AMG engine.

Poorly done review. Almost seems like the author was biased against the IS-F even before he set out to "test" the car.
The childish and shameful way in which he dares to talk up the 335i removes any doubt that this was not a serious review of a most excellent machine from Lexus.