Shake down cruise - 5 mph over ?

[mfm22]

Interesting another Boxster "secret"?

I should forget about this and take the speedo at face value - probably save my a$$ from some tickets

[BirdDog]

Mine always indicates 4 mph over (at least above 35 mph, not sure below that).

Confirmed via GPS, Radar, and a friend in Law Enforcement who paced me.

[Dave S.]

My portable GPS will tell you your actual speed. Mine speedometer reads about 2 mph faster at 60 mph than you are actually going.

[Dave S.]

double post. oops.