Volkswagen products don't change as radically or as often as products from other car makers. Why? We asked Thomas Tetzlaff of VW. See, at VW it's more about tweaking and improving than completely redesigning. It's a different culture, but there is some exciting new stuff coming and we have the inside scoop in this attached video. A conversation with VW Executive Thomas Tetzlaff / with Rick Walker - SST Car Show News.