I own a Garmin 76cs and from what I understand Metroguide Canada v.4 has much more detail and many more points of interest then City Select NA v.6.
From what I also understand is that Metroguide Canada v.4 does not support auotrouting on the GPS itself. Only if you download the autorouted information from your PC to your GPS. But City Select NA v.6 you can autoroute right from your GPS.
Is this correct or am I mistaken?