I want to start this off by saying please do not try to answer this by making a top speed run. That said, what are your opinions on top speed capability of the HHR SS? I have seen claims of 150mph, 150+mph, and 155mph. The new Cobalt claims 160mph. The fastest car I ever owned would do 160 mph, but it was limited by gearing, not horsepower. I ask this because the SS "feels" like a 135mph car and 155mph is a long way from that. Fastest I have gone is 118-120mph (indicated) on a friend's private road about 3 miles long, but not straight and not super smooth, so I could not stay on WOT the whole time. I have not read a road test that actually has a measured top speed report.

 

Another SS owner whom I trust just e-mailed me that he pegged the speedometer (140 mph +) and read 146 on his GPS, so that at least blows my 135 mph theory. I think it was a long straight road in Nevada.

 

i did 135+ on the freeway when i test drove mine. it still felt like it had more but traffic was coming up an di had to slow down..

 

my GPS showed 143 (on a closed road with a professional driver) and still had pedal left but ran out of safe road.

 

So went over to my friend's private road this morning, figured out that we could get a better run if we hit the driveway entrance at a much higher speed, looked like about 132 mph this time, and this is about the best I can do here and stay safe. Reset the Garmin recorded max speed just before the run, as I have found it to be very accurate, although so is the SS speedo. This is what the max speed display read after the run, guess there was a black hole or small timewarp I did not notice!

 

all I can say is, that is FAST!!!!!