I like the man maths going on here, but believe me when I say it’s utter horse shit. It is entirely down to temperature/heater and not car efficiency. The same stretch of road that speed with 20 degrees outside would probably give me one of the lowest consumption I’ve ever recorded like 11 kwh/100km
The worst I’ve ever seen on my car was 99kwh/100 kms during a particularly cold morning, where I had forgotten to activate the preheat functionality, and sat in a frozen car for a few minutes while the heater warmed up the interior and the defrosters unfroze the windows and mirrors. As soon as I moved, the consumption dropped dramatically.
I’ve never gotten any worse than 25kwh/100 kms on a ‘normal’ trip, and that was doing only motorway stuff at -10 and snowing. And in summer, traffic jams hardly use any electricity at all since the heater doesn’t need to work at all.
If I had to guess the heater uses something between 2 and 5 kw in cold weather, which is a lot considering the battery size of the Golf. The thing to do is to preheat the car before (costing you like the 10 kms of range max, which is roughly 5% battery in the Golf) to do the preheating before setting off.
It is also because of this that I want a heatpump in my next car. Will be doing more miles and longer journeys so I may need the extra bit of range it gives.
I just noticed Matt saying ‘I’d actively vote against a car with heatpump’. Why is that
@Matt2000 ?