As sibling comment posted, if you run a company you can write off the cost of the lease against corporation tax (25% tax saving), VAT (a further 10% saving if you have personal use, otherwise the full 20% if it's purely business), and you don't have to pay income tax on the money (albeit with a small benefit in kind payment).

If you're in the higher tax brackets this means a £200/month lease (say) ends up more like £90/month.

And because of the "new" £3kish subsidy the govt put in, the car finance companies seem to basically apply that as a big discount to the lease value (or it seems that way?). So you could get a brand new ~£30k EV with no upfront payment and a 2-3 year term for <£100/month including maintenance. Mine even came with a free car charger install at home.