Completely doable, especially in the summer- I could string several 500+ mile tanks together in my 05
Subaru Legacy GT wagon with a 16.7 gallon tank.
Both cars are turbo manuals and they have similar EPA ratings, but the Saab's most likely got better aero and front wheel drive. Not far over 30 mpg will get you 500 miles, and until the car started to give out towards 200k I was getting in the 30s all the time.