Just check on that warranty, don't think the factory warranty applies once it was used as a "fleet" car.
If truly a lot less than a similar resale (remember not what people are asking what they are getting) then should be fine. Even if abused as a rental car they do maintain them like clockwork and new cars can take it! Not every rental driver abuses cars.
Now: 2016 Mustang GT Fastback-Magnetic Metallic, Ford Racing Touring axle-backs, Ford Racing front strut and k-brace, K&N CAI, sound tube delete, 1975 Corvette Coupe-L48, 4-speed
Past Lives: 2001 Corvette Z51 Coupe, 2012 Mustang Grabber Blue Coupe, 2008 Mustang Torch Red Vert, 1988 Mazda RX-7 Vert, 1985 Nissan 300ZX, 1979 Mazda RX-7, 1971 Datsun 240Z, 1972 Fiat 124 Vert, 1971 Chevelle, 1970 Challenger