The any type car on your free rentals is great - I will often get a 7 passenger Luxury SUV or Infinit/BMW for taxes only - Really it is like others say when you rent that much you are in places a lot. IT is about relationships for me. For example as an EE at my "home location" they all know me. They almost always let me pick any car I want from the lot (small airport location). Nothing like getting a Tahoe for $20 a day! Also the 24hr guarantee is huge if you find you need a car in a pinch.