[Piwoslaw]

Bad news: Having too much electronic stuff in control of everything sucks. I used my engine kill button after the car's computer became disoriented and the Wife and I got locked out of the car (with the key in the ignition!), before midnight, in freezing wind, up to our ankles in snow, with everything (except us) inside the car: money, documents, food, warm clothes. Thankfully we were in good hands and got the car open the next morning
Engine Kill Switch - Use with Caution!!

Good news: On that trip I got 4.2 l/100km on the way out - at night and in strong wind and snow, and 3.6 l/100km on the return - nice weather and taking it extra slow

On the way back I picked up a set of aluminum wheels. Read more here:
Ultralight 15" wheels for Citroën/Peugeot owners

I used the pad heater in tandem with the coolant heater on Friday and after 1h45m the coolant temperature was about 2°C more than usual (23°C instead of 21°C), but this was at start up. Once the engine got going it warmed up a little faster since the oil was already prewarmed. If only I knew if I had an oil temperature sensor (very likely) and how to hack into it...