As with most members on this board, I figured your car was a dual purpose of some sort as well, I didn't mean to ruffle any feathers, it was strictly speaking in a soloII reference. One point I think we need to touch on is the Nascar style bars are only required for the driver's side of the car. I have an x-bar similar to your link on the passenger side as well, but without the lower portion, which is nice BTW.
Jon, I probably sound like a broken record with the SCCA reference, but I'm using it as a benchmark. My club, and NASA for example, follow their rules closely, but this is W2W for too, which most of member here don't do.