Enterprise Rent-A-Car released its replacement rental data for the first quarter of 2015, which was tracked by Enterprise’s Automated Rental Management System (ARMS).

ARMS tracked the length of time a replacement vehicle is rented to collision center customers and found the national average length of replacement rental (LOR) decreased to 11.5 days in the first quarter for the first time in two years.

“A variety of factors likely drove the slight decrease in LOR, including more mild Midwest weather conditions despite record snowfalls in the Northeast,” said Frank LaViola, assistant vice president of collision industry relations of Enterprise Rent-A-Car. “The type and complexity of vehicles paired with existing vehicle repair methods also play a continued role in repair time fluctuations.”

ARMS data also showed that the type of vehicle also affected the LOR. Vehicles designated as European took the longest by more than 1 day, with domestic and foreign models taking close to the same amount of time to repair.