Yeah a 70 is fine; a 60 though, that's just that little bit less where one would want to pretty much be fully charged to make it between superchargers for the long trips. An S60 would realistically be getting about 310kms on a full charge, and 280km on 90%.
Realistic range tends to be about 80% of the claimed NEDC
Realistic range tends to be about 80% of the claimed NEDC