Hi, I am about to rent a car for a week in Florida. I usually go for a Intermediate and have been upgraded to standard or full size. This time a Premium or Luxury car is cheaper than even a Subcompact. What are the downsize of choosing a Premium or Luxury instead? I am a bit worried about the gas cost but other than that? We will have two large suitcases, might even have a third but it will be a large duffel bag.

Any help with this is appreciated since I need to book as soon as possible.