In Reply to: Speedometer error posted by Ed N on February 12, 2000 at 18:57:44:
: Fired up the GPS today and checked the speedometer error on my Y2K. It reads consistently 5 MPH fast at 60,70 and 80 MPH. This seems to confirm the posts that stated there is a +4 MPH offset. The worst part is that my sons's Boxster is good to 1 MPH. The embarassment!