My car and calculations..

Range Rover S'charged (4.2)
With RM50 of fuel it will do at most 150 kilometres (city). Is this considered bad?
Sometimes does about 120~130.
350km trips to Singapore, doing around 140~150km/h, the mpg can drop to as low as 9~10 (compared to my usual 12~14mpg city driving).

Will experiment my BMW next time, see how it does.

Edit: How to calculate stuff in the end? Keep the receipts and all?

This post has been edited by UE7: May 15 2008, 09:30 PM