If I'm operating under the premise that it would be another Unfinished Business-type All-Star season, and I'm not allowed to use any teams before TAR19, I'm going with these teams:
Andy & Tommy - overwhelming favorites to win, done in by other three taxis drivers working together.
Amani & Marcus - had hometown advantage in final leg, but had trouble with the flight simulator because Marcus was too tall to fit in it
Bopper & Mark - fairly strong racers, fan favorites, but the Bollywood dance put them so far behind that not even the Fast Forward could catch them up.
Art & JJ - unknowingly had the lead on the final leg for (allegedly) an hour, but Art couldn't finish the sled Roadblock.
The other 7 or 8 teams can come from future seasons.