You have to register at ESPN:

http://r.espn.go.com/espn/contests/porsche/index

"Grand Prize: Trip for two to Houston to have lunch with football legend Marcus Allen before the Big Game and the use of a Porsche for the weekend. Grand Prize package includes round trip coach air fare for two, four nights standard hotel accommodations, and $500 spending money for the winner."

For some reason, they're not allowed to say "Super Bowl".

U.S. only. Ends 12/28/03.