Rentalcar-Talk.com - The Community for Rental Cars

At Miami I have the choice between a Sixt XCAR which means a Mercedes-Benz E-Class, Volvo S90, Cadillac XTS. Alternatively I can book at Enterprise in the category Full size Elite and this would mean a Q50 or something similar.

What do the professionals here suggest to select? What do I likely get at Enterprise? Assuming that the prices are more or less the same are there any other reasons than car choice to pick one over the other?

Thank you for the interesting question @GSE5 .

Based on my personal experience the XCAR fleet of Sixt is much more attractive compared to full size elite of Enterprise. Sixt has there plenty of E-classes, Volvo S90 and also XTS.
Full size elite will finally land you in a Q50 as Enterprise has plenty of those.

Another advantage of Sixt is the Sixt App. You can under the app functionality "pick/reserve" a specific vehicle as soon as you are within the 30 minutess the reservation pick up window.

Ah, good advise @Bentley . I was not yet aware about the Sixt App. Seems to be a useful tool

If I have the choice I would go to Sixt for a XCAR rental

Clear statement from my side, go to Sixt. Sixt is absolutely premium, Enterprise never !