Which is better M5 or M6?
Which is better M5 or M6? BMW M6. When comparing the BMW M5's and the BMW M6's specifications and ratings, the BMW M5 has the advantage in the areas of fuel efficiency, reliability, resale value, interior volume, overall quality score and base engine power.
Why is the M5 so fast?
The M5 CS features a V8 engine that is fitted with optimised turbochargers and a maximum injection pressure of 350 bar. This allows for quicker injection times, which improves the atomisation of fuel. Improvements have also been made to lubrication and cooling.
Are M5 and M6 the same?
The number after M is the nominal diameter of the threaded portion in millimetres. So M6 is thicker than M5.