https://phys.org/news/2018-08-elon-musk-tesla-software-classic.html

"Some of the best classic @Atari games coming as Easter eggs in Tesla V9.0 release in about 4 weeks. Thanks @Atari!," tweeted Musk.

For those not in the know, "Easter eggs" refers to a hidden bonus feature included in a piece of software, or a DVD, that users have to find on their own. In the case of Tesla, Musk means that a driver (or, for safety reasons, preferably a passenger) will know the games are available, but they will be up to their own devices to find and play them.