Just picked up a car for a week from CVG today.
I reserved a premium because I'm always disappointed by this locations EA/ES choices. The EA was absolutely pitiful, I think the nicest option they had was an older malibu. The ES wasn't much better, with a newer looking Dodge Charger as easily the best option.
CVG's premium cars are parked in front of the office. Today they had a choice of 4 brand new 300's or a Maxima. I've driven Maximas many times and never a 300, so I went with a black 2013 300 with 650 miles on it. It's very nice, drives well, and got 31 mpg on the drive back from the airport. I didn't see a CTS or any other luxury vehicles on their lot.