What they said:
Carol: Ta-daaaa! Isn’t she a beauty? Bought and paid for her myself.
Peter: You want me to go up in that…thing?
Carol: Hang on, I can fix…! And yes. Get in.
What I heard:
Peter: What a piece of junk!
Carol: She’ll make point-five past lightspeed. She may not look like much, but she’s got it where it counts, kid.
Also Carol’s face.
(FYCD: your source for intelligent commentary!)
Source: Avenging Spider-Man #9.
This is a 100% correct interpretation. One. Hundred. Percent.