Oh, my bad. I thought we were pimping our rides... heh
In all seriousness, my only question about this whole thing is that he mentioned that you really shouldn't have hot exhaust next to your gas tank. We know after 100+ years, that this is OKAY to do. Much more so than a fuel source that could leak (at least vapor), next to a battery that could spark. Just my $.02.
Other than that, there really isn't much practicality to doing this. Besides doing something in a daily driven Balt that hasn't been done before, assuming the race ones have probably done it... albeit, safer. Which, to each their own. But I agree with the person that said to open the tire well up from the bottom, and closed from in the trunk. This could then be mounted in a way that it uses the same area, but is still outside of the car and out of the way of the exhaust. That, or relocate the battery above the well somewhere else in the trunk, and put the fuel cell there. But, with a way to cover it and protect the rest of the trunk/car from exposure.