Quote:
Originally Posted by Junkycosmos
JBF,
FXSLIN,
Nice looking! Even with that box 
Do you notice a difference in mileage with the box on? |
I have a Thule box as shown here on an X3:
https://www.google.com/search?q=Thul...FaGx-jpEBdM%3A
With the front overhang necessary to allow the rear hatch to open, I'm afraid the box really sticks its nose into the windstream. My fuel mileage drops one mile per gallon at 65MPH with the box on, and two miles per gallon at 70MPH. And in a fast 80MPH holiday weekend pace on Labor Day, I was down at 16.7 MPG with my 3.0! I was glad the gasoline prices had fallen.
2002 X5 3.0 289,660 miles
3004 325i 123,000 miles