the monthly payments being £525 with 10K miles per year
In case helpful:
Assuming you have off-street parking, and will install a home charger, then if you have / change-to a cheap Off Peak tariff you would expect to save £100 a month (
compared to Fuel for ICE) for every 10K miles you drive a year. So basically you could put £100 more on the Finance (than ICE) and break even.
If you have a very good overnight rate and maximise everything that can creep up to about £150 a month per 10K miles p.a. If you need to do some charging away-from-home (e.g. days when you travel over 250 miles) then that number will go down
If you do 20K miles a year that's £200 more a month on finance
so works better for higher mileage drivers.
Check out insurance? Tesla cars are quick, so insurance tends to be the top Group
Installing a home charger will be towards £1,000 provided that the cable route is straightforward. Charging port is passenger side, rear - so consider how you enter your drive / park and where charger port might be (and if that makes the cable-run complicated / "more expensive"). Car will use WiFi when parked (to download updates etc.) so having good WiFi coverage on your drive would be worthwhile - budget for a "WiFi extender" if you need one.
Charging with the UMC (should come with the car) is about 7 MPH, and the cheapest Off Peak rate is 4 hours - so 28 miles per night. A Wall Charger is around 25-27 MPH, so about 100 miles per night. If you will routinely have days when you need to top-up more than that then that will be at Peak Rate (or you could get Ecconomy-7 instead, which is 7 hours Off Peak, but the price is not as good as the 4-hour tariffs)
You'll need a smart meter for that, so if you haven't got one there may be a delay before you can switch to that tariff.
Tesla have included EAP on all their inventory cars (if not FSD). You're paying a bit for an option that may not bother you, but the prices look kind of ok against the market
Buying from Tesla, and getting EAP bundled, will increase the purchase price (relative to a 3rd party sale that doesn't have EAP/FSD) but will probably add a bit to the residual value on sale - so might be justifiable on that basis