A pure EV basically gets a 50% tax cut, which can be $100k if you were looking at a comparable ICE car to the Model S.
So in Norway the opposite is true "ICE vehicles are considerably more expensive".
You can also ask yourself this: what value you get for your money on a given budget if you buy a Golf at $50k which is half taxes, versus a Bolt at a similar price with almost none of it being tax? I'd choose the Bolt any day.
Obviously none of this translates to anywhere else. It's a lot easier to give a massive tax break if you had a huge tax initially, than it would be for e.g the US to slap on a 20% tax on new ICE vehicles. (Unless of course they are made in Mexico in which case it's apparently easy).
I've owned an older model for 4+ years now. I haven't seen any drop in battery performance yet and the company says the battery should last 8+ years without problems. I can believe that based on my experience.
The older model is available in the UK. https://mahindrauk.com
If the battery is only charged to say 80%, and only discharged to say 30%, instead of doing full charges and discharges, it'll last longer. EV manufacturers know this trick and stop charging at something like 80%, while telling the user it's fully charged.
See for instance this article: https://cleantechnica.com/2016/05/31/battery-lifetime-long-c...
Even including a brand new battery, total cost is still well below your 15K EUR max budget, using real-world numbers you can actually purchase with today :
http://www.autotrader.co.uk/car-search?make=RENAULT&model=ZO...
What? Where? Denmark? I'd seriously consider. Here (Finland) they are completely unavailable as used, and new ones start at 32 990 €.
It looks like a new Zoe sells for exactly half the price in UK (14 k£ , 16 400 €) than here in Finland (33 k€). Is there a substantial subsidy on electric cars in UK? Here they have less tax than others.
I don't know what the second hand car market is like where you live, but just in case it's similar to the UK, it's possible to get a second hand hybrid electric car for similar money in the UK. For example, can get a second hand Prius for less than £3k if you shop around:
http://m.ebay.co.uk/sch/i.html?_sacat=18290&_from=R40&_trksi...
I'm not sure that's a fair comparison though. a Nissan LEAF or Renault Zoe will probably end up around your 4k euro price when they get to be 7 years old too.
My point is that if you want an affordable EV option, they exist. You don't have to be an engineer to afford an electric car anymore, they've become reasonably cheap, and prices seem to slowly be dropping every year
Bear in mind that with many examples of Renault and Nissan EVs, you also have to pay a mandatory monthly battery leasing fee - even as the second or subsequent owner. So the headline purchase cost is only part of the price.
There are some Zoes, and a larger proportion of Leafs, in which the battery is owned outright but one has to check before purchasing.
Seriously people, everyone driving ICEs is using a massive subsidy loophole with respect to carbon emissions.