They wouldn't just be cars refueled every 70 miles. They'd be BEVs refueled every 70 miles on days when charging at home or at destinations isn't sufficient. In exchange for more stops on longer trips, you'd be getting a car that's smoother, quieter, more responsive, likely with better handling, requires less maintenance, is much cheaper to fuel and can be pre-conditioned in your garage.
Because of ultra-fast charging capability there'd be a business model supporting for-pay charging and, get this, because of the lack of fumes, you could have fully-enclosed or nearly-enclosed filling stations, better to shield people from the weather when plugging in. Oh, and you can plug your car in and leave it to go to the bathroom or buy a coffee or whatever. Or you can plug your car in, and then sit in the car and wait (while gas stations tell you not to open the door while using a gas pump).
People drive faster to save time and all (they think) it costs them is money, but with ultra-fast BEV charging they'd be exchanging much more than just money if they want to buy an ICEV for range.
An analogy to an ICEV with a small fuel tank is inappropriate. BEVs are just too different. The real negatives:
(1) Slow refueling
(2) Short range between refueling
(3) Significantly higher fuel consumption draw in low temperatures causes unpredictable range
All of those diminish with more capacity.
Either we're miscommunicating or we fundamentally disagree on a crucial point.
To be clear: I believe that a 70 mile range vehicle in the US will never sell in large quantity. Period. Dot. Doesn't matter if it's an EV or ICE.
Such a vehicle is such a royal pain on both long highway trips and even for daily driving that most people won't buy it. My wife is a case in point. Her share of driving the kids around means that 1-2 days of the week (at least), she's driving more than 70 miles per day. Even if she could recharge in 5 minutes, some of those days the schedule is so tight, she doesn't have 5 minutes to spare during a 70 mile run. She really wanted a LEAF but it just wasn't a feasible option. This is classic soccer-mom and there are a lot of them out there.
Whereas one of the many reasons I love my S is that I don't worry about charging. Unless I'm road-tripping, I drive during the day. I charge at home. No worries. It's better than an ICE - I've been late to meetings in the past because I had to stop and get gas on the way to work. Never again.
My claim and people may disagree: when it comes to pure battery-powered EVs (BEV) like the LEAF and Tesla's it's all about battery capacity.
Larger battery capacity:
- gives you more range
- lets you draw more power without damaging the battery
- lets you recharge faster without damaging the battery
- lowers the impact of cold and high speeds on range
When it comes to battery capacity, bigger is better.
The Nissan LEAF and other early BEV's have proven that a 24KwH pack isn't enough. Those cars need bigger batteries.
I think Tesla has proven that 200 miles is the magic number for BEV's. And I view that as "barely practical" - meaning that it's enough so that most people can drive all day and recharge at night. And it's tolerable for road trips although not ideal.
I think the "about right" threshold is >400-500 miles of range. Call that a 130-170 KwH battery pack. Pair that with a 120KW fast charging network and home charging you'll have something that's workable as both an everyday driver and road-tripping car and ICE's will start to fade away.