[stefanv]

First full tank results are in: 5.19 L/100 km, 45.3 mpg (US), 54.4 mpg (Imp).

A tiny bit worse than the previous tank (of which only 3/4 was with the mods in place). However, my wife took the car on a 56km trip, where she did about 13% worse than my average for the tank according to Torque. She's actually a pretty eco driver, but it was really hot that day, and she had the A/C on the whole way. If I do the math and factor that out, then I was burning 5.13 L/100km for the rest of the tank.

My average since I began hypermiling 60 days ago is now: 5.35 L/100km, 43.9 mpg (US), 52.7 mpg (Imp).

I finished my smooth wheel covers, although I'm not totally happy with how they turned out. I think I'll probably go ahead and put them on now. I'd really like to get below 5.0 L/100km (above 47 mpg (US), 56.4 mpg (Imp)).

EDIT: Based on the numbers so far, the mods seemed to have given me about a 5-6% improvement.