You input tunes you already have that are set up to your preferred driving style, then when you need a new tune, you can select a function on the app that builds a base tune of one you already have.
Example: you have a drift setup on a Rx-7, a handling tune on a corvette c5, and a drag tune on a veyron. You then purchase another car like a viper acr 08. You can select the inTune function to give it a drift tune based off the Rx-7 tune you already have or a handling tune based on the c5, or a drag tune based on the veyron
