Sixt takes 15% off car rentals throughout Florida with prices starting at $7.79 per day, as provided by ShermansTravel. (We found this rate on September 21 with pickup from Tampa.) That's $1 under our mention from two weeks ago and the lowest base rate we could find for select rentals by $8 per day. It's valid at participating locations in Florida only and a 7-day minimum rental period is required. Fees, insurance, and taxes are additional. This travel deal ends September 24 for rentals through September 30.