I am going to be upgrading my sons buggy for the upcoming season and have been looking into the Xray. Pretty much everything I have read on these boards and in magazines have been very possitive when it comes to the quality and ease of building the Xray. My question is this, some things that I have read suggest that the Xray is (don't quote me) marketed and engineered towards the European market and tracks. Is there a difference between the tracks in Europe and the US and how RC cars are set up for each of them? Maybe I'm wrong or misinformed. Thanks for any help.