What does M stand for on roads?
What does M stand for on roads? M routes are primary traffic routes, called motorways in some states. These are typically dual carriageway, freeway-standard highways, but may also be used for rural roads that are nearly at freeway-standard, or at least are dual carriageways.
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.
Why is there no M7?
There is no M7 because there has never been a need to replace the A7 with a motorway. There was an idea in the 1990s to build a new toll road linking Edinburgh and the A74 (M), along the lines of the A702, and the idea was floated that this could take the M7 number.