Has anyone ever retrofitted the electric engine preheating, had it retrofitted or had it already when buying in the car? I would leave the installation, which is equipped with 2 left hands, to a workshop. Does the system do what? Unfortunately, I did not find a price. Since our only garage is inhabited by Saab, I think about the heating system, in order to make the V70 the short distances in the winter half year a bit less wear.