Are there GPS navigators (car) with street as well as highway traffic?

Looking to buy another GPS navigator for my car. An external unit that mounts on the windshield or dash. I have had two Garmin units which use Navteq which is OK but it only has freeway (highway) traffic. Are there any that have BOTH streets and highways traffic data, something like google maps traffic (which uses crowdsourcing data from cell phone users whose phones are equipped with GPS)?
If not, I will probably buy the most basic GPS navigator with lifetime free traffic, regardless of the traffic data source – may just get another Garmin, perhaps a refurbished one.
Is Navteq basically the only GPS Navigator traffic source? Others? Differences?