I may as well address this to Stu as he will provide the nuggets I need - but anyone else feel free to chip in...
I am aware that there are subtle differences in F20s, depending on car/year of manufacture etc, but I have now realised (following on from the Type R thread) that the ratios on teh saloon are just ghey!
Drove it up to Brum this morning and it was nice and quiet, so was checking the sat chav/RPM ratio - THE best way to do it!
In my van at 4k in 5th it reads 87mph
In the loon it reads 73mph!
4500 on the loon (5th) is 82mph
5000 rpm is 92mph
So it seems that they are F16-like ratios!?
Could explain why I struggled at higher speeds against that Civic...