Here's their all-electric lap:
http://www.youtube.com/watch?feature...&v=SfxPHwoBaPI
It was passed by the Rebellion LMP1 car (4th place overall) but it passed the Aston Martin (2nd place in the GTE Pro) - so if that is any indication, it was a quite competitive lap. They just need about 300 of those, not the 24 they got.