You’ll save corporate tax on the depreciation, typically people write it down to zero in year 1, and then whatever you sell it for when it goes is pure profit and taxed at the rate at the time. I believe CT rates are going up and may be stepped so you may pay a higher CT % rate when it sells than what you save when you buy it. With low depreciation that mattered, sadly low depreciation doesn’t seem to be an issue (although you could be buying at a low price which might prove to hold its value well)
BIK is pretty low. Expenses aren’t much other than tyres at the moment.
The gotcha is business mileage rates. As a personal car you’d be able to claim 45p a mile, as a company car I think it’s 6p unless it’s changed, but v public charging costs and even regular home charging you can make a loss per mile. There are some things you can do to help mitigate that though, like the company paying for charging.
Only other gotcha I can think of is opportunity cost of that money. If it wasn’t sunk into the car, what would you do with it?
When depreciation was low it could be a finely balanced thing if you did 10k business miles a year and could only claim the minimum rate, now depreciation seems to be a real cost on ownership, putting it in the company makes sense.
The short answer however is ask your accountant as these things vary person to person and knowledge of your tax affairs can matter.