AutoBlog had an interesting post about the possibility of Cadillac testing and working on a performance version of the ELR... there is even reports that a partially camouflaged ELR was being tested next to Tesla Model S

Quote:
Perhaps the biggest hint that Cadillac is looking at a more potent ELR is the vehicle this car was being tested with – a Tesla Model S. The poster-child for the EV movement is a known performer, so it'd make sense that Cadillac is benchmarking this car against it.
Despite these bits of evidence, though, we're still far from convinced. Building an ELR-V seems to go against everything Cadillac is trying to do with both the ELR and the V range. Instead, we're betting this will become a VSport, following in the footsteps of the new CTS VSport.
Here's the full article:
http://www.autoblog.com/2014/05/12/cadi ... spy-shots/