I've never driven a Gen 1, but I know my Gen 2 has a bit of roll-in/roll-out. If I don't mash the accelerator, it sort of "fades in" the acceleration, and if I do, it's pretty much instant, but releasing the pedal (no matter how fast) still has a little bit of "fade out" before it returns to full coasting. It doesn't feel like it's sticking; it just feels like it has a bit of springyness in the acceleration. The total time to return to coasting is about a half second.