From UDI to Guid

Questions
1 
        var udi = Udi.Parse(test);
        var page = Services.ContentService.GetById(Guid.Parse("ac0a00738fbb43d3b6ebd01928d61051"));
        string teee = page.GetValue("CarDetailsTitle").ToString();
This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/100621-from-udi-to-guid