In my other thread, the argument often came up that long range is not necessary 95% of the time. However in future there will be driverless technology and people will rent cars rather than buy one.
The car will arrive and drop you off at the desired location. Then it will drive to the next customer and repeat the process.
Instead of the car sitting idle it will be in use 99% of the time. Any stop to recharge or refuel is wasted money, as the car could be performing its taxi service and earning money for the owner.
Thus long ranged vehicles are essential for the economics of transportation in the future.
However I do have to concede that electric vehicles and cheaper electricity are a huge advantage if you drive many many miles (assuming favourable battery degradation statistics).
Anyway: Long distance electric vehicles will be needed when driverless technology matures. Because this will be off by another 20 years probably, battery engineers and innovators still have time to make 600 mile ranged vehicles ;).
Of course quicker recharging goes hand in hand with this.