Had a 1-day Premium reservation with drop-off at the airport. Was immediately offered a 2015 Mercedes-Benz C300 4MATIC (GXAR) with less than 2K miles, which apparently had been set aside for my reservation.

If I get a chance, I'll do a separate ride report (short video of it here). Great car to have as a rental, but was a little surprised that it was missing a backup camera as standard equipment. I was also a little worried that we wouldn't be able to fit our 3 suitcases in the trunk -- it was a tight fit, but we managed to cram it all in.

Edited to Add: Ride Report for the C300 posted here