Hey everyone, haven't posted here in too long!!
Anyways here is my SPECULATION based on the finale preview.
The detour comes first. (Luke takes his top off to ride the boat thingy)
Then comes the compulsory task of carrying the pig along the beach. (Luke already has his top off for this)
Then comes final roadblock / surfboard challenge. (M/L arrive first after over-taking the other couples at the pig-carrying challenge. T/V arrive soon after, followed by J/C)
I SPECULATE that T/V complete the roadblock first- the preview shows his rack of surfboards and he clearly has more than Luke does.
T/V get into their final cab (Victor's huge smile in preview) and win the race. Margie and Luke come in a close second.
Another thing that leads me to believe that T/V win the race... I saw a photo somewhere on here of C/J & T/V post-race with a caption describing T/V as the "gracious party hosts"... surely it makes sense that the winners of the race are the ones to host a party??