Really depends on the vehicle and how AvisBudget has the ownership setup. They have 3 categories for corporate fleet vehicles, if I remember correctly (noted by a letter on the key chain in the blue stripe:
1. Risk: Avis owns outright and will sell when they determine it's time.
2. Tier: They have the vehicle for several tiers of time/mileage. Could be 6 months/12k miles, 12 months/24k miles or whatever Avis/manufacturer determines. If they go over the first tier, they immediately keep it for the remainder of the 2nd tier. If it goes past the last tier, then it becomes a Risk car & is bought by Avis.
3. Flat: Avis will own the vehicle for a specific amount of time, mileage or time & mileage. If the vehicle goes over the tier, then Avis buys it & it's a Risk car.
Seems like newer cars are more frequent in the fall, so I wouldn't be surprised if they're higher mileage for summer travel.
Last edited by IAHtraveler; Jun 8, 2016 at 6:57 am
Reason: added wording for corporate fleet vehicles