I wouldn't recommend shooting day for night if you can avoid it. You won't be able to see the sky at all (to sell the effect), and you would have to have some really powerful lights to be able to punch through the extreme under exposure necessary to sell the effect. It kind of depends on the tone your going for, as well as what camera you're shooting with. It's possible you could just use available street lights, plus the lights from the car and get a nice low key look. If your looking for something more elaborate, you need access to more equipment (i.e. high power lights/generator). There isn't really any "secret" way of lighting a car at night. You can either use available light that's on the street plus the light from the car (and other cars), or you can start bringing in your own bigger lights. But you'd probably need at least a few 2k's for it to really matter, probably more though.