I think if you average a steady 60mph you might get 40mpg, constant 70mph is probably a gnats over 30mpg on a run? I get 29 round town and have been known to get 40mpg over a 60mile journey.
No nothing.
No Mods. No rockers. Just a chunky knob, thats now been replaced by an RS knob innit.
No tackiness.
Std as Ford intended, but with a space saver wheel and jack and nuts and wheel brace. oh.. and flaps, a man has got to have flaps.
Innit?