Hi def cams require more light than SD, so in a sense, all have low-light issues. Having said that, I don't know of any prosumer level hi-def cam that has a better lux rating than the FX1. It is the only hi-def cam we considered for wedding/event shoots and it is performing as expected - not quite good enough for parts of some receptions, but good enough for nearly all ceremonies and sixty percent of receptions.
I don't know of any place that races motor cars indoors. The nighttime races I've noticed (seen from the highway as I pass by) were lit up brighter than a prison on "escape alert"!