My Tesla M3 regularly - but unpredictably - goes into sulks and the computer controlled driving gives up. Sod's law usually means it's just when I really want it to work. That's why I rate Tesla as Crap/Brilliant!
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Was watching a clip of Clarkson reviewing a Tesla the other day. 7 seats, two boots and weighs two and half tons but it has a 0-60 of 3.4 seconds and will beat an Audi R8 over the quarter-mile. (Of course he actually does the race to prove it).
He said the only downside was the price - £155K
And the intermittently functioning door handles probably.
I have tried to charge up our EVs during the day from the solar panels. The panel system is rated at around 4kW, but of course the actual output depends on the quality of the sunlight. We are on Octopus - and usually charge up in the cheap period - set to 9.30pm to 1.30am - which works out at around £2.80 (2 sessions over 2 nights = 8 hours) for a nearly full charge on a Tesla M3. Zoe can be done in less time - probably costs about £2 for a full charge. We often run the dishwasher and washing machine during the day - when the sun is bright - and I'm told this makes virtually no impact on the electricity bill - based on the data returned from Octopus. However when I tried to charge the Tesla M3 up using the slowest charger, the impact on the bill was noticeable - not huge - but noticeable., and we decided it is better to revert to charging overnight with the 5p per kWh tarriff.
If there were ways to only charge up cars (or anything else - use immersion heaters etc.) which would work reliably, and adjust the load to the demand depending on the sunlight, that would be good. However good devices which do this don't seem to be available. Of course also, if eveyone fitted any devices like that, companies which to some extent may rely on electricity being fed back into the grid would adjust their rates.
One other comment - we try not to push the battery levels in the cars to over 80% too often, in order to maintain the battery life. Sometimes we go for broke - but mostly try to keep in the range 20/30 to 70/80 which arguably may be the best compromise to keep batteries in order.