I am so impressed with the fuel economy you are acheiving with the M3. I know it may make no sense to some, but the issue of fuel consumption is a concern to me when I am weighing up the pro & cons of my next purchase. Not so much from a cost point of view but rather I don't want to feel that I need my own carbon trading scheme to run my car.
Can I ask how you would describe your driving habits to acheive such consumption. For example city/freeway driving per tank and more impotantly fun factor when you need to enjoy the amazing performance of the car.
Thanks for your information.