[Scargoes]

I read an article where Randy Pobst talked about this and his discussion with the Chevy engineers. According to what Randy said, Track mode it Linear while Tour and Sport are Progressive. He talked about his complaint to the engineers that when on track and at the limit, having a progressive throttle response was upsetting the car. So they changed the programming for Track mode and he said it was easier to drive at the limit.

I'll look for the article again and post it if I find it. Or maybe it was in one of his videos. I spent a year researching between the 3 'pony' cars and renting for the weekend to make up my mind when buying my 1LE. I don't remember off hand exactly where I saw it.