Booked a premium-class car at DTW. Instead of picking a car, I received a text message indicating I had been given a luxury-class car, in this case a Buick LaCrosse. When I went to the stall I found the most basic LaCrosse model ever. Hardly luxury, especially compared to the loaded Chevrolet Impala cars that typically come with a premium-class booking. I went inside to the Gold Counter and asked why I had been given a LaCrosse when there were a half-dozen Cadillac XTS cars next to my car. The agent voided my LaCrosse and told me to pick anything from the President's Circle row. I went with a black XTS that had 1,000 miles on it.