by the sticker on the door. I know that a lot of peples wonder about their speed limiter and the tires that their car was equipped with form the factory.



is that what HCL Speed RTG means??
could the RTG mean rating?

Yes, that is speed rating. Yours are * - 112 MPH.

can we get breakdown of all the speed ratings

P - 93 MPH
Q - 99 MPH
* - 112 MPH
T - 118 MPH
U - 124 MPH
H - 130 MPH
V - 149 MPH
W - 168 MPH
Y - 186 MPH
Z - 149+ MPH

thanks

i wonder if mine is a T or Y?

Mine is rated Z. Why is it that my car only does 121?

i dont think your tires have anything to do with that...

I saw a show about the history of the muscle car on History channel a while back, and one of the things they kep pointing out was GM'* restrictions on which cars were allowed to do what, power and speed wise. So, in order to meet those rules (probably so that the Vette and what not look better) Pontiac has to put limiters and such on their vehicles. Can't have one of them dang Bonne'* being modified by some end user to outperform a Camaro or Vette, now, can we???

R = 85 mph

Mine called for *...but I have upgraded to H.