Heres the crack guys. I'm currently running my A6 C5 Avant 2.5 tdi as a daily commuter into south London from north Essex. My drive to work is 50 miles, 70% of which is motorway down the M11. I originally bought the car as I thought it would return good mpg, is currently averaging 32 ( and has done for a year now. I've read that due to it being a Quattro, weighing a couple of ton and the 2.5 being a thirsty engine the mpg was never going to be great. Now I'm considering an early 180bhp TT as a daily driver and leaving the missus to do the school run with the A6 family bus. I recon I would be able to achieve around the same mpg with this variation of the TT. With petrol prices being a little cheaper than diesel I recon I wouldn't be any worst off????? What are your guys thoughts on this??