In the past, I had the Touareg navigation system warn me of congested traffic or of an accident on the road ahead. It also colour coded the roads in green, yellow, and red depending on traffic conditions...but it only did this a few times, Is there an upgrade that is required to make this...

Going to migrate to San Francisco bay area on August, may I ask what is the good price for 2013 touareg lux now, both tdi and VR6. Thanks so much in advance.