0
Network calls in the shipped build.
01aWhat leaves your phone
Nothing. That is checkable, not a slogan.
There is no advertising in version 1.0, and that was decided and written down before the store was built. No loot boxes, no randomised crates, no rewarded video.
There is also no analytics SDK and no ad SDK in the binary, and the game makes no network calls at all. Your best runs, your car and your currency live on the phone and stay there.
One thing said plainly because it looks like something it is not: the NIGHT CIRCUIT ladder is eight rivals generated on your device. It is not online multiplayer and there is no global leaderboard.