The group drive around in a "Fundae Sundae" ice cream truck because they needed it to haul "The Ice Man" in the pilot episode. The character was dropped, but they kept the truck.
In an interview in Starlog 124 (published November 1987), Courteney Cox revealed that she was auditioning for a part on Code Name: Foxfire (1985) at Universal Studios when she found out they were casting Misfits of Science across the hall and decided to try out for that as well.