27mpg on mine.

I do 90% motorway miles but usually around the 80 - 90mph mark (but you wont get me admitting that in court!)

The engines take AGES to warm up! And they DRINK fuel while they warm up which is why they are total crap on MPG for around town usage.

If you can keep to a sensible 50mph they will do 37 - 40mpg.