On-site Dollar vs Alamo question

[slamommie]

We're using DME to get to WDW, but are planning on renting a car for a few days while we're on-site. Booked a minivan from Dollar (Grosvenor Resort) and there are a few additional fees shown in the fine print and we'd have to pay for an extra driver. Alamo's rate is a higher but includes an extra driver, a concession fee and no additional fees are shown in the fine print. Not sure if we need the extra driver...but have a couple of questions:
1) Does anyone know whether there are any additional fees that Dollar and Alamo may charge us when picking up the car (besides the insurances)?
2) Does Dollar also charge a concession fee that is not being disclosed?
3) If we return the minivan after our return time, how much is the charge for Dollar and Alamo?

TIA - just don't want to be surprised when we pick up the cars...

 

[szymon]

1 & 2) All the fees should be included in the on-screen confirmation. There should be no additional fees.
3) You are better off reserving for the exact period of time you need - Alamo charges an extra fee if you return the car at a different time then stipulated.

Szymon