Standard GTi, 2500 miles on the clock; I drive moderately hard but generally only on short trips so am barely getting upto temperature. I get anywhere between 12mpg to 19mpg (about 250 miles to a tank); if I drive sedately I get about 22.5mpg and 32 on a long trip. Economy isn't brilliant but it is improved if you stay below 3000 rpm and avoid using the turbo fully.