What is Laura saving up to buy for Rob in "Bank Book 6565696" (Season 2, Episode 4)?

This episode contained a fun Easter egg: The sports car Laura plans to buy is an "XKG-JFK 400", a reference to the then-current president, John F. Kennedy. The joke got a big laugh from the studio audience.

Asked by Susanna Henke · Last updated 5 years ago · 5.5K views · SOURCE