Unlock the secrets of the automotive industry's hidden gems with us as we explore the world of filler brands. Discover the intriguing role these brands have played in bridging gaps that main companies overlooked, much like holiday snacks filling in the gaps between meals. We'll journey through the history of brands like Plymouth, Viking, and Mercury, which were crafted to cater to niche markets and varying consumer needs. We'll also examine the current market, highlighting sub-brands like GMC's Denali and their continued significance, especially in expanding markets such as China.