I'm trying to figure out what's bugging me about our new 100D, and I think it's that the motors are slightly out of sync. I trade back and forth between driving it and our Model S 75, and the acceleration seems smoother in the 75, and the regen as well. It's like there's a slight lag between the motors on the 100D, and it feels like turbos kicking in on a ICE vehicle when you accelerate hard - two stages of acceleration rather than just one. It's not huge, but it's noticeable. I was wondering if anyone else had noticed the same? I'm going to call service, but thought it might be worth seeing if anyone else has had an issue with dual motor timing. Thanks for any feedback!