Buying in March / April. What electric car or hybrid should I get ?

[UnrelentingFruitScoffer]

Now going to change the car in the spring. Currently ancient seven-seater.

What electric or hybrid car can I get that will take a large family ?

Not really an answer to your question but I'd buy in March unless you want to pay hefty extra tariffs post-Brexit

What is your budget?

Want to spend about £12K secondhand to buy outright. No point oaying interest to finance companies.

How old / what mileage would you consider? I've heard good things about the Nissan leaf

Depends on how long you’re planning to keep the car. The technology for electric cars will get better and they’ll be able to go further with less charge so depends on your travelling distances etc