There is no EE or Emerald aisle, cars are pre-assigned. Upon arrival, the shuttle will drop you at your assigned car, where most of the time, an agent with the paperwork will be waiting. I had rented a midsize & was given a Mitsubishi Lancer which supposedly only had a bit over 2,000 miles, the way this piece of junk drove, I'm thinking the odometer was at 102,000 and I just missed the 1 !! But seeing how PR drivers are some of the worst I've experienced, I'm glad I had a beater. Just make sure you do a complete inspection of the vehicle before you leave & note EACH dent/scratch/windshield chip.