Slow and steady "wins the race" though. An average car is parked more than 12 hours a day. (The average is even closer to 23 hours than it is to 12 hours.) You easily cover the average commute even at 4 miles range added per hour (and as sibling post points out, some EVs do even better than that in a Level 1 charge) even just charging a car ~50% of the time that car spends parked.