hide is right, try to find a 'mode' that gives a fast shutter speed to freeze the car, don't think this is easy indoors with a dslr that has adjustable iso - it aint.
Try to pan with the car, some of the 10th shots have a sharp background and moving blur cars - you want the other way round. On the whole they are pretty good, when you get outside with todays sunshine it will become easier.
Remember you may be able to lighten dark shots in software, but you need to be good to keep it natural.
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