It was 17 degrees below zero this morning and I only had 20 minutes to use the heater, but I had 25 degrees oil temperature when I started the engine. That's a 42 degree differens in 20 minutes. The cord goes in the smal black lid in the front bumper. The coupe heater worked fine, but I think it needed some more time to really defrost the glas.
I had VW fit winter tyres on my diamond alloys 195/45 R16. I will use the original tyres on new BM Bari rims for the summer.