I have just bought a x6 to see what all the hype was about and am well pleased with it

now can some of you clever x factory people share some of you wisdom with me and tell me the difference between the X6 and the X6 squared, and what parts i would need to buy to do it?? its a cracking car! shame the shell is so ugly, but a phat bodies zen is on order much betterer!!
cheers gixxer