Traffic was (as always) heavy so was often disengaging cruise control and coasting to gently slow down and then re-engaging cruise to pick up speed which is does really slowly in that mode.In efficiency though when maintaining motorway speeds it shouldn't make any difference right? unless you are constantly taking foot off pedal to coast, though then you would have to speed up to accelerate so probably makes mpg worse.
If you're maintaining highest gear and not coasting then not sure what difference the drive select modes would do.
Impressive figures anyway!
(I drive efficiency 75%+ of time)
I was surprised at the mpg, especially as Birmingham to Manchester is uphill all the way...….