That's real mature. You're a real grown up.
5 seconds sound clip from the Cars movie soundboard.
You can hear this line at 00:58:38 in the Blu-ray version of the movie.
Quote context
[...]
- Besides, she can't stand me. And I don't like her, to be honest.
- Hey, look, there's Miss Sally!
- You're in love with Miss Sally.
- No way.
- Way.
- You're in love with Miss Sally!
- That's real mature. You're a real grown up.
- You love her. You love her. You love her! You love her. You love her.
- All right. OK. Mater, enough! Will you stop that?
- Stop driving backwards. It's creeping me out. You're gonna wreck or something.
- Wreck? Shoot! I'm the world's best backwards driver!
- You just watch this right here, lover boy. Wee-hee!
[...]