private void LoadSelectedCar() {
if (Cars == null || CarsView == null) return;
var selected = LimitedStorage.Get(LimitedSpace.OnlineSelectedCar, Id);
var firstAvailable = (selected == null ? null : Cars.GetByIdOrDefault(selected)) ?? Cars.FirstOrDefault(x => x.IsAvailable);
CarsView.MoveCurrentTo(firstAvailable);
}