My 2013 CT200h Advance had a TomTom card that I could update regularly on my laptop at reasonable cost via TomTom and was a very reliable satnav system. My latest (2016 Sport CT) has a built in Lexus satnav system that is generally awful, with frequent mis-directions. I’m due for a service this month and I’ll check the cost of upgrading it to the 2020 maps, but it looks as though I would be better with a separate TomTom or Garmin system placed over the built in screen!