We've been on the road for the holidays visiting family
24 Dec - 134 km , no heat , only heated seats, and car blanket on our lap and legs , dressed with gloves, hats and warm boots. Charged at several location while visiting family and shopping, modified level 1, & level 2.
24-25 Dec - car outside, had charged with modified level 1 for more than 12 hours in temps -13. Day time temps warmed up to -8c.
Left with full charge for 92 km trip. Had to stop and charge level 2 for 45 minutes to make it home , 4 km left on the RR guage - again no heating other than seats and lap blanket.
Conclusion so far, we added heated cushion for passenger and a electric car blanket for the legs.
For temps down to -10c, this is just enough not to run the main heating system. at the lower temps the RR does suffer 10-15 %
Waiting on colder temps to further evaluate., Last night Dec 25-26 temps were down to -18 C, car was garaged,
Propane heater is on standby for further testing, and will start plugging in the electric car blanket.
Tesla Model 3 SR+, 2019
Puey Bluey 2014 Miev
200,000 km , 124.000 miles.
Blackie - 2012 ES Miev 2 years - 67,000 km / (41,630 miles)