Romad, 50lbs of air sounds a bit crazy. I doubt they'll explode, but it may indeed require you to get some new teeth fillings.

I've heard the XFire referred to as a large Miata. Would love to get your thoughts on that after you have a chance to drive a few curves.
Last, the more I look at Machine Grey the more I really like the hint of blue at certain angles. Unless of course, it's just my eyes...and at age 70, it really could be?

Best.