It depends on the states. When I bought my SVT I just drove home with the CA tags. My other options were to take my Maxima's tags and put them on the SVT (legal in MA, but would have surely gotten me pulled over by any cop who ran the tags) or NH temp tags (which required a bill of sale to obtain, which I didn't yet have, and are illegal to drive through MA for some screwy reason).
Overall it was pretty painless though. NH took care of the out-of-state title and mailed me one within a few weeks.
Overall it was pretty painless though. NH took care of the out-of-state title and mailed me one within a few weeks.