The "what then" is to wait for one of more of the following:
- The Government to provide better incentives
- EV tech to become cheaper to create as adoption becomes more widespread
- EV second hand car market grows such that cars depreciate much more
Personally we chose to buy a new Grand Scenic when we had kids, for a small deposit and £290 per month over about 5 years (15k total plus interest). Many people now don't buy the car at all but effectively "hire" it using PCP or lease. The bigger EVs will work out expensive on PCP, but the smaller ones aren't *that* pricey. For 6 grand down you could buy a top of the range Nissan Leaf for about £350 a month, which isn't *too* bad for many middle class families.
Obviously work needs to be done. If we killed the VAT like Norway, the prices would be able to really shift and EV take up would rocket.