Disingenuous of that
Disingenuous of that salesperson, but at my average economy I get ~110 miles per full charge. A lot of it just comes down to the kind of driving you do (city vs highway) and how you drive. If you do purely city driving below 40MPH, and accelerate and brake very gently, 120+ isn't unreasonable. On the other hand, if you have a lead foot and do highway driving, I'd expect below 80.