>> Maybe the colder weather?
>>
>> Oh no, that's EVs :-)
>>
>> (Though I guess cold will affect performance of ICE engines too...?)
>>
Certainly used to be the case with diesels, from an economy perspective, but not sure about turbo petrol engines. Don’t they perform better in lower temperatures, as the air is denser and has more oxygen per litre or something. Haven’t noticed any impact on economy, and the mild hybrid system in the Merc has the heater blowing warm air in 10 or 15 seconds, defrosting the screen quicker than the heated one in the MINI
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