I tried to get my car back but had no joy. I didn't get more than a 5m up the hill. At least I managed to park it up onto the pavement this time, so at least there is less chance of someone skidding down the hill and hitting it the car. What a struggle though, a few passers by helped out which was handy and nice of them.
I saw a few cars make it up this hill on snow chains ( fitted on the front wheels only ) with no problem at all. Maybe worth investing in some of these.