Other Car Rental Programs/Partners (ie. Alamo, Enterprise, Sixt) - Need a car 3/24 - 4/3 from FRA - best deal?

Gonna be picking up a car at FRA (assume airport is best?) on 3/24 til 4/3. Reading the board it seems Sixt looks like the favorite? Any deals/codes I can use to lessen the $$$? I need room for 3. So, I was looking at Passat/BMW 3/MB C-E. Any tips, help, or advice appreciated.

thanx,
sascha =)

Try www.sixti.de

I would as well try www.avis.de and the link to avis basic (no frills rental car) and in addition www.laudamotion.de (Ich will mieten - wanna rent) they offer the MINI as a beautiful car :-)