When with my previous employer I used to travel an average of one week out of every one to two months and so got the chance to drive a wide variety of rental cars. I would normally reserve a "standard" or "intermediate" car through Enterprise and would often get complimentary upgrades (didn't have anything in the reserved size, extra cars sitting around, etc.). The best upgrade I every got was to a new four door F-150 (less than 10,000 miles, IIRC) and the second was to a Nissan Armada (my choice was either that or a minivan). I still travel in my current job but have not had the luck of getting upgraded as of yet.
What is the best complimentary rental car upgrade you have every had?
What is the best complimentary rental car upgrade you have every had?