For customers who opted to purchase their Performance Tesla Model S or X without Ludicrous speed, there is an option to have the electric vehicle upgraded via over-the-air-software update. Through the Tesla app, click on “Upgrades” and see if the upgrade is available for your Tesla. Performance Some Tesla customers give a word of caution to those who keep a cluttered car. As it is said, objects in rest tend to remain at rest. When you launch in the Ludicrous Speed Mode, your electric vehicle will lurch forward, but your coffee, sunglasses, change, etc., will fly to the rear of the car. Be mindful!