I am a motorway driver with a sad propensity for driving up my MPG. Over the past 45k have averaged 47mpg.
The tires on the M5/M6/M40/M42 have been quiet and have quite good grip in the dry. Wet is pants, even given very light right foot action. Almost no perceivable noise, even at higher speeds on non-asphalt surfaces.
Tires bought at 87k miles and still look OK at 108k - some signs of ageing though.

