I've had Tessie for 11 months. Never have I tried Launch Mode. I've done a lot of acceleration runs without it, but today was different. I printed out the instructions then drove to a lonely desert road. What follows is what I posted earlier on a local car enthusiast website:
Tesla's "Ludicrous Speed Mode" is crazy enough but Launch Mode is something else. First, make sure any loose items are secured; remove the phone from its holder and put it in your holster. Make sure the battery is warmed up. Tap "Ludicrous" acceleration mode, enable "Max Battery Power." Then set suspension to the lowest position. Look around for kids, pets, other cars and the police.
Depress the brake all the way with your left foot. Press the accelerator to the floor, then release it. "Launch Mode Enabled" appears on the instrument panel. You can feel the car tense up and the front end comes up a bit. Press the accelerator all the way down. Then release the brake.
Instantly, the blood in my head slammed into the rear of my skull and my head hit the headrest. For about 5 seconds I felt dizzy. That's about 1.1 G's initial acceleration. I backed off before I hit triple digits. I sure hope I didn't exceed the speed limit.
I gotta find someone to film this from the right seat.