The 8.5 was not that slow but I think we are both going to use 6.5's this weekend. I just wanted to break it in gently !!! LOL I was talking to Jamie last night about it and Just said " If we had had starter cars like this when we started ???" I have seen loads and tried starter RTR's over the years. I can honestly say this is the best allround package so far. We are all puzzeeled how they are doing it for the price ???