A 24kW hr battery powered electric drivetrain will deliver the same amount of total energy at the wheels as about 9 litres of petrol in an ICE powered car. You'd need about a 93kw hr battery pack to have the equivalent range of a petrol 500, and that's ignoring the considerable extra weight of a battery pack of such a size.
Imagine paying almost three times the price for a petrol 500 with a 9 litre tank with a built in restrictor in the filler pipe that means it'll take you at least an hour to refuel it, and you'll see why EV's still have some way to go to be competitive in the mainstream market.
If I may extend the analogy further, there's a big plus, and a big minus. The big plus is that you can get very cheap petrol from an outside tap on the wall of your house (though it'll come out of a very small drinking straw); the big minus is that the petrol leaves a small deposit in your tank each time you fill up, slowly reducing its capacity. There's no way of removing the deposit, and a new petrol tank will cost you at least £8000.
This is all utter nonsense and the same rubbish that anti-electric car people like to recycle (and already have in this thread) over and over.
Imagine a car you never have to refuel, plug it in when you get home in an evening like you would your mobile phone or laptop and you never need to worry about visiting a pump ever again?
How about saving more than 80% on your annual fuel cost, when you charge?
What about no tailpipe emissions, that's zero harmful fumes being released outside your house or your children's school. If everyone had an electric car the air where you live would be glorious! with the most harmful fumes being from someone walking down the road with an over zelous vape doodad.
As for range, I don't know what the current range of a petrol 500 is, maybe 400 - 500 miles on a full tank? when was the last time you got in your car and drove solidly for 400 - 500 miles non-stop? even on a long journey on holiday, you'd stop to use the toilet, to get on a ferry or train if going across to Europe. you might even stay overnight in a hotel to continue the journey the next day.
Whatever the case there are plenty of opportunities to charge up for the next part of the journey.
If you have something like a fiat 500, you will rarely be doing trips of over 150 miles at a time.
I ran my diesel punto for 3 years when at university, putting a tenner in at a time which would get me about 100 or so miles, and it stood for hours at a time outside the house without going anywhere so more than ample opportunity that it could be charging, if it were electric.
It really isn't the electric car that is not ready for the mass market, its people's thinking that is not ready to accept it, as you've very much just shown.
That 400,000 miles Tesla showed something like 6% reduced battery capacity after 200k miles That's a Tesla being severely abused, supercharging to 95 - 100% every day, sometimes several times in a day. most fiat 500's will be scrapped long before reaching 200k miles. batteries will then be taken apart and the good cells used to make new batteries. Fiat like all other manufactures also have an 8 year battery waranty so if you buy a new or nearly new one, you are not likely to have to worry about replacing the battery in the time you own the car.