Right after the Linzes won the race, the producers staged a final challenge between the Bransens and the Weavers, with an SUV s the prize.
Linky to the video:
http://www.cbs.com/gmc/?source=ola&p...16027B516015S0
They have to run and grab 12 "icons", from a series of scattered clue boxes, and place them on the appropriate part of the North American puzzle map.
The video is about 6 minutes long, and follows a commercial for the SUV.
<b>BONUS:</b> If you look very closely, while they are running to and fro, you can see an unfinished map in the background. This tells me that the Weavers never actually had to assemble theirs.