First in the US, it was Delta and its Porsches. Then it was United and its Mercedes fleet. Now we have American and its Cadillacs. The great race to keep US travelers away from the teeming masses continues. Now if you’re a super elite or fancy pants flier on these airlines, you might find a car waiting to whisk you between gates at the hubs. But if you’re a top tier traveler, do you care? Let’s hear your experiences.