Whacking the throttle to the floor in default Tour/Drive mode, the car pauses a moment before leaving. Upshifts are smooth, but not particularly fast. Climbing the ladder of modes (Tour/Sport/Track) hastens shifting dramatically. The best run was in Sport/Drive with only a hint of wheelspin. I tried more wheelspin, less wheelspin, and the times only grew longer in either case. I'm at a loss to explain why we were about a half-second behind GM's 0-60 estimate because there's essentially no driver skill involved once under way.
Immediate reaction from the pedal, near-zero dive and straight. Rapid and silent ABS cycles are unobtrusive. Extremely powerful and confident brakes that also resist heat well, as shown by the six stops separated by just 2 feet.
"Slalom: The CTS Vsport is one of those cars that is deceptively capable in the slalom because it goes through the cones with little drama and doesn't overtax the driver. Steering is crisp and friction-free, but supplies just enough info about the front tires. Once I realized the leniency of the ESC, I could even lift to snub understeer, induce oversteer, then get back on the throttle and do it all over again for the next cone -- predictably and precisely. It felt like I had days between cones because the grip gives up so progressively.