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    MG4: Drag, Various Conditions

    The point is that you contradicted my post by saying that the figure should have been 5.98 kWh. Which was INCORRECT - hence my response. You then admitted your mistake, so I repeated the the figure of 1.5kWh as being the correct one, and not 5.98kWh. But it's apparent that you edited your...
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    MG4: Drag, Various Conditions

    OK, as at least one FM is now feeling confused, I'll repeat, the correct figure is: ~ 1.5kWh per 1000 feet.
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    MG4: Drag, Various Conditions

    No it's not - I think you've mixed up hours and seconds. Edit: in response to @wattmatters' comment.
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    MG4: Drag, Various Conditions

    Yes, as I said, the energy per 100 miles is a more useful figure (as it has a more direct relationship to range - which very much is a limitation). By the way, the energy figure for lifting an MG4 1000 feet is about 1.5 kWh. (Not a lot of people know that!)
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    MG4: Drag, Various Conditions

    What I was saying was that weight isn't a factor which affects drag - and the figures are for aerodynamic drag only. Energy required to overcome rolling resistance (which is pretty much constant for a given weight over a given distance/route) and in changing speed are of course extra.
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    Putting a figure on wind resistance

    You both may find this interesting: https://www.mgevs.com/threads/mg4-drag-various-conditions.8275/#post-133694
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    Do you use AC in winter?

    I don't think you need to worry about seals in the case of A/C in EVs (or hybrids), as they are self-contained with internal electrically-powered compressors (like a domestic fridge) - unlike ICE cars, where compressors are driven mechanically via an external pulley driven by the engine.
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    MG4 power %?

    EVs' motors are torque-limited (i.e. constant-torque) at low-speeds, and power-limited (constant-power) at high speeds. There is also the motor temperature factor - the quoted maximum power is, I believe, a peak power figure. As to how long you can maintain that - it doesn't seem to be well...
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    Range estimation at -30 celsius?

    Don't forget that, regardless of battery considerations, the increase in air density with colder temperatures will cause an increase in drag - expect at least 15% more drag at motorway speeds if it's -30C (compared with an air temperature of 15C). Since drag losses dominate at motorway speeds...
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    Is it possible to totally run an EV on just a Granny charger? ?

    There are safety issues with granny chargers: The UK earthing system is vulnerable to the loss of Neutral connection off-site. In this country, Neutral is earthed at the local substation, and that forms local Protective Earth, and if there's a break in the Neutral line to your premises, your...
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    E scooter in Aberystwyth

    An e-scooter? With those tiny wheels on our pot-holed roads? They're relatively unstable at the best of times! Even bicycles (e- or not) can be pretty dodgy when mixed with cars and lorries, but would be far preferable.
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    Poor efficiency (or is it just the cold?)

    I don't have an EV yet, but my neighbour's BMW i3's efficiency apparently responds hugely to preconditioning on cold (British) winter days - using mains energy to heat the battery while connected to the charger - before setting off. And, I believe, even using battery energy to precondition when...
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    Things I love (or don’t) about my new MG4 – very subjective!

    Any chance of a link? A widget that does the job competently sounds like a good idea to me! I think he meant the Austin Allegro (the Maestro's notorious predecessor)!
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    MG4 X Power Vibe/Hum 65 to 75mph

    Thing is, (suspension?) resonances need to be excited in order to be apparent. Maybe the excitation source is "cogging"? Or associated with the front axle alignment?
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    Something different on the 4

    Sounds like it might be out of balance (front) wheels. Take it to your local friendly tyre shop!
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    Poll: What’s your favourite colour MG4?

    From the web (and my memory), the MG4 available colours in the UK are (and I don't believe there are any alternative names for exactly those colours - save possibly Brighton Blue): ARCTIC WHITE. HOLBORN BLUE. PEARL BLACK. CAMDEN GREY. DYNAMIC RED. VOLCANO ORANGE
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    MG4 Rear Wing

    I think it's because there's a difference between a rear spoiler and a rear wing (a la F1 car). A lip spoiler will usually reduce drag by diminishing the low-pressure area behind the vehicle when it's moving at speed. The rear wing is a more elaborate affair, and is there to increase downforce...
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    MG4 Efficiency - am I doing something wrong?

    I'm by no means an expert (in fact I find the various opinions/instructions on this confusing), but isn't the advice different according to whether the battery is of LFC or NMC technology?
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    MG4 Efficiency - am I doing something wrong?

    Here are a few calculations I did regarding the energy needed to overcome aero drag at various airspeeds (i.e. taking into account wind speed, as well as road speed): https://www.mgevs.com/threads/mg4-drag-various-conditions.8275/#post-133694 In the context of a car using mostly regenerative...
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    MG4 Efficiency - am I doing something wrong?

    Well, Wikipedia says a car's air con will run at 3kW. If your car needs 30kW average power for normal driving, then you'd expect about 10% reduction in miles per kWh - so 4.4 goes down to around 4.0. Whether either of these assumptions is accurate, who knows? But the effect of running air con...
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