i am reading this with interest, my white GTD is on oder.
Currently I drive a VW California Beach, basically a VW Transporter with a 115bhp Bluemotion TDi engine and some start stop stuff, which makes absolutely no difference.
Turning air con off makes a big difference, also sitting at 60 makes a vast difference compared to 70. My experience has always been that cars have a sweet spot for MPG, but who wants to drive t 60 all day?
I had a Volvo C30 before the California and I loved that car, but the 2.0 Diesel, powerful as it was for its time never really returned much more than 44 - 47 on a run and around 36 - 38 around town.
With my Beach i tend set my MFD to number 2 and record an average over the month or the week and that works out about 36 mpg - or more painfully - I spend about £70 a week on diesel.
Any improvement with the GTD would be welcome.
I am not a quick driver, so expecting some gains. Very interesting point raised about ACT, I do suspect that is where the future lies and I was very interested in the Polo Blue GT.
James