Originally Posted by maxcichon
Didn't I just say that?
The way I was told it works:
GVWR=3671 2005 Roadster (from door sticker)
- 415 (Max Capacity-2 people) (from door frame sticker)
-
111.3 (15.9 Gal gas @ 7 lb/gal)
3144.7 (Curb Weight empty)
Or am I wrong?
You are mostly correct, but you left out the cargo.