Wonder Wheels hits the slopes in this seasonally appropriate adventure, trying to track down "The Snowmen".
If anything, Hanna-Barbera could've claimed that Wonder Wheels might've been derived from 2 past toon vehicles---Pat Pending's Converticar (Wacky Races, 1968) or the Chan Van (Amazing Chan & the Chan Clan, 1972). Unfortunately, it's but a memory now.
Edit, 11/22/15: The video has been deleted due to copyright issues. Another poster has it up, but posted it two times in a row in the same clip.