I made this shot some while ago (not too long) and I didn't post it here yet, so here we go.
Multiple exposure, first flashed the front with a softbox with a 430EX in it with the interior light turned on. Then I did a 1/13 exposure for the headlights. Combined it in Photoshop and voila.
I experimented with both a softbox and bare flash for this picture. It turns out that the softbox gives soooo much nicer light.




