Other Car Rental Programs/Partners (ie. Alamo, Enterprise, Sixt) - Alamo Luxury - What car should i expect?

What type of luxury cars does alamo have, especially in florida.
They only list dts.
Do they have the same cars as national (dts, cts, 300)?
Do they usually have a navigation system?
I need a car in october in miami and i am not sure whether to take a convertible or a luxury because of the rain.

I rent from the Miami Location all the time...

They constantly rotate their stock on cars. So one day you can go and a Magnum would be considered Luxury and then u go another weekend and the same Magnum would be a fullsize...

Currently they have lots of CTS and 300's on the lot.

Im going to say stay away from the Convertibles.. because currently they are using VW Bug's & PT Cruiser's as convertibles.. They use to have the Chrysler Sebrings convertibles... but i havent seen as of late.

I wouldn't consider a magnum as a luxury car....
Somehow i can't book a luxury car at the airport, it is only available at their city office, which has to be a mistake as their aiport station should be a lot bigger then in the city.
VW Bug & PT Cruiser are a no go for me.

edit:
I can only book luxury at the airport when country of residence is set to us.