I mean that some cars are "Redline limited" when it comes to top speed, and not governed. I'm pretty sure the SS was redline limited, meaning it ran out of top gear to keep it going faster with a 4-Speed Auto.
Despite the antics of the overwhelmed tires, hard acceleration still leaves the driver giddy - at least for the first few runs. We certainly can't argue with this kind of performance from a family sedan that starts at $26,990 - there's that 0-to-60 time of 5.6 seconds, the quarter-mile turns in 14.2 seconds at 101 mph, and the ungoverned top speed is 154 mph. Much to our surprise, the SS turned out to be 0.1 second faster from 0 to 60 and in the quarter-mile than the identically powered but 132-pounds-lighter Grand Prix GXP we tested last fall.