[yreg]

It's a joke. That clip is supposed to be your passengers.

[andirk]

I still don't understand. Is that a feature of the vehicle or not? Is this an April Fool's joke or is there a setting that cheers on the driver while accelerating? I see some individuals took insult to my question. Some of the sounds are pings and pops and knocks to mimic a combustable engine. What is this sound for?

[yreg]

The car doesn't make the sound. The documentation jokes that your passengers do.

[pavas]

It's the sound your passengers make, which is a joke.