A Delta Air Lines program that whisks "high-value customers" from gate-to-gate in a Porsche has expanded to Minneapolis-St. Paul International Airport. For the service, which started as a trial in Atlanta, a "Delta Elite Services representative" surprises select customers at the aircraft door and escorts them via a Porsche Cayenne S Hybrid vehicle to their connecting gate. Delta says it is looking for ways to "enhance the travel experience for our most valued customers." In this case, that refers to Diamond Medallion members, most of whom have flown at least 125,000 miles. "We've found a unique opportunity to surprise and delight customers," Delta says. Let's hope those Porsche's have horns so they don't surprise other unsuspecting fliers in the process.