Several seasoned characters from the Nevada County cell recovered Zak Porter's Car of the Future from a Pentex mining facility near Catrimani, Brazil (Rage Across the Amazon, p35). The facility was completely destroyed, with no known survivors. See the related post in the Pentex thread in the Corporate Blotter.
The car itself is completely dismantled, though the team was able to recover CAD files describing the disassembly process, which were only 20% corrupted by the EM pulse released when the researchers were killed.
Anyone monitoring satellite imagery of the area at the time should contact Hawful, ShadyTradesman, or DocEther to find out what they saw.