It is based on Rambi, a rhino from Donkey Kong Country, whom Donkey Kong and/or Diddy Kong rides on whenever they find his respective box during the game.
The Rambi Rider has high drift and is one of the heaviest karts in the game by raw weight, second only to the Tyrant. Like all other "large" karts in DS, the Rambi Rider also has the highest possible items stat. However, this is counteracted by its extremely low acceleration and handling, and its very weak Mini-Turbos. Additionally, its speed, while above-average, is the lowest among all karts in the game belonging to heavyweights. These weaknesses make the Rambi Rider a very uncommon choice in all levels of play.