Talkshow host’s IndyCar team posts caricature on car in big race‘With everything that’s happened it’s the highlight of my career’David Letterman had a new No1 on Sunday, on his personal Top 10 list of reasons he loves the Indianapolis 500.The freshly retired Late Show host was all grins as his IndyCar team paid tribute by putting a gap-toothed, smiling caricature of his face and #thanksdave on driver Oriol Servia’s yellow car for the big race.