Looks like an excellent price for a 4.3" SatNav from a recognised manufacturer. Deal is until 16 June only. This model not showing on line. Seen in Redditch but probably nationwide in larger stores.
3.5" screen version (model B350) reduced to £49.97 online:http://direct.tesco.com/q/R.206-5387.aspx
Sorry, don't know how to add a picture.