Barbie™ Doll Star Traveler, GMC Motorhomes. Mattel Sales Promotion launched September 1977, Retail price $25.95, Special $21.95.

There were three versions. A Star Traveler (yellow), Eleganza II, w/ roof deck & ladder, shown below, a Rodeo version (Beige), and in the mid 1980's, a Rockers version (lavender w/splash).