Chose for what? Give them an even more memorable vehicle delivery experience than they were expecting.
Unbeknown to the two future Mercedes-Benz car owners, the Germans' marketing department arranged with both of their Mercedes AMG Petronas F1 Team drivers to act as the car delivery drivers and personally hand in the two vehicle keys.
F1 World Champion Lewis Hamilton and team mate Nico Rosberg happily obliged and the whole event can be watched in the following video. The two customers knew that they were being filmed, so it's not exactly a candid camera moment, but they sure didn't know about the F1 celebrities that were about to bring their cars, so it's kind of fun to watch their “What the...” faces during delivery.