Dominic Toretto: It starts with the eyes. She's gotta have those kind of eyes that can look right through the bullshit, to the good in someone. 20% angel,80% devil. Down to earth. Ain't afraid to get a little engine grease under her fingernails.
Gisele Harabo: That doesn't sound anything like me.
Dominic Toretto: It ain't.
Brian O'Conner: This is where my jurisdiction ends.
Dominic Toretto: And this is where mine begins.
Antonio Braga: So, you know each other?
Dominic Toretto: He used to date my sister.
Antonio Braga: You're a lucky man.
Brian O'Conner: How's that?
Antonio Braga: You're still breathing!
Dominic Toretto: Just like old times.
Agent Sophie Trinh: So which car do you want?
Brian O'Conner: All of them.
Answer: When criminals transport large amounts of money, it is often wrapped in foil and plastic to protect it from accidental damage from liquids and fire. There is also an urban legend that wrapping it in foil will keep it from being detected by scanning equipment.
Foil is also used to shield against RFID sensors which is a safety feature used to protect items.