Oh yeah - I was posting here for a reason. I think "hair trigger" is in reference to what is commonly called "tip-in", meaning that there is instant throttle changes made with pedal movement. Most manufacturers offer a certain amount of pedal travel from it's resting position before a linear and progrssive throttle opening (ostensibly to keep the average numb-foot driver from jackrabbit wrecking at every light). I've only heard (as the local MBZ guys laugh when I tell them I'm ready for a test drive in a 55) that throttle response is immediate on this car.

My two cents.