[Manhattan]

2006 base model, 4cyl, FWD, 215/70/16s... reads about 5mph fast. If felt slow - in that when it reports 30, we're going 25. The grilles in the rear view mirror are a good indicator too. I've checked with GPS - the speedo definitely reports about 5mph faster than the car's actually going.

I was hoping it was the tires... nope - has a new set of Yokohama 215/70/16s.

Any idea what could be going on?

Thanks.