I own a R4, and over the last 20,000kms it has averaged over 44 to the gallon, and some of that is cruising at up to 75 mph. I will be going down to the Balearics again in the next week or so with a couple of mates for a short holiday, and to pick up my other baby, a Land Rover 101. On the way back up to Switzerland, it will be the "support vehicle"(sic) for the 101. It will be sitting behind what is basically a brick with a wheel in each corner for 620 miles of motorway driving at an average of 50mph (i.e. getting a bit of a tow). Has anybody any ideas as to what it should be doing to the gallon under these circumstances. The 101 should be well into double figures by the way, possibly as much as 14 or 15 mpg.