just a observation really why the gen 4 is **** on fuel compared to the gen 3...both take around ?15 to fill from empty where as the gen 3 use to say range 155 miles..... the best it says on the gen 4 is 97 miles...........as it use 2 bars within 14 miles.........and other people say its night &day compared to the gen 3.....Where's I disagree......to me its not worth the extra money.......oh well we all make mistakes.....