I'll check the tread depth this evening and post it up for you.
I'm usually taking it fairly easy, using the torque of the supercharged motor to pull higher gears, keeping the speed down to the legal limit on motorways / dual carriageways (70 & 60 mph) and just trying to drive as smoothly as possible. Okay, so I still let her rip occassionally (

), but a long motorway journey can see her returning as much as 38 mpg
