Hertz
Cleanliness
Comfort
Overall
Pick-up/drop-off
Value
Sixt
Cleanliness
Comfort
Overall
Pick-up/drop-off
Value
Europcar
Alamo
FLIZZR
CARO
keddy by Europcar
Yes, you can hire a car for a month at Mainz-Kostheim check Cheapflights for the latest prices and car type availability.