For those of you who answered the obvious, thanks, I didn't know about the large speedometer dial in the middle class of the dash. I guess I'll have to read my owners manual. For the person who said it would be redundant, have you noticed that there is a speedometer and a digital display as someone else noted. Also there is a lot of redundant information such as temperature, radio, etc.
Now it was a legitimate question since when I use the Garmin, there can be a 3 mph difference between it and the speedometer. Like I said, I like to see the two together especially when there is a speed limit change. I can see at a glance in one place what I should do.
To those with honest answers, thanks for your responses