Tesla range quotes should be taken with a very large pinch of salt in the real world.... Friend of mine was looking at one for work. He needed to tow a lightish trailer (something his current disco didn't even know was on the back).... Tesla were very cagy as to range towing .... Ended up him getting a 'weekend test drive' (which they will do if you're a serious sales prospect) to try it out .... Did less than half the quoted range and just squeaked home .... He bought a new Disco.
Also heard of small electric vans who's claimed range suffered catastrophically when the lads actually put their tool boxes in them..... Still a way to go yet in real world (read:not just swishing a mile up the road to Harrods so everyone can see how green you are) ..... Can't imagine a current replacement for my defender, able to spend an hour plus as a battering ram and shovel holder just to get to the end of my drive through the snow drifts in the middle of winter.
They may get there... But they're not there yet in real life
K