Great advice from Bony. Fortunately, anything that may not be correct on some of the X1's can be fixed, but sadly, the owners with issues will be paying twice; however, if you own a X1 and it's not in Green Bay, consider yourself very fortunate. IMO the more Genaddi options you have, the more potential issues you have. Mark had a revolving door of people involved in the build - some were very talented and others should never have been hired. Before this is over, a horror story or 2 will likely surface, and every owner should have their car inspected by the GT Guys who will be working on the completion of X1's at least until the end of this year and beyond if most of the unfinished cars are eventually shipped to them.
The only option on my X1 was painted calipers and one was not installed properly :frown. My performance upgrades were done by the GT Guys :biggrin. Other "stuff" was done by other stuff experts :biggrin, and when I get around to addressing the paint issues, it will be done by a paint expert. :cheers