Originally Posted by iahphx

It's very difficult to get a reasonable rate on a minivan these days. You can play around with all the codes here (and in the other car rental forums), but your best bet might be to reserve a cheaper car and negotiate at the counter!

Overall, Thrifty/Dollar seem to generally offer the cheapest rates -- usually with just the promos listed on their site (no codes) -- but they're still usually twice the price of a regular vehicle.