Skunny Kart is a nice racing game clearly inspired by Super Mario Kart. It was developed by Copysoft and released in 1993 for MS-DOS.
The hero of the game is Skunny, a squirrel, that we met in a series of shareware games made by the same studio, including the platformer Skunny: Save Our Pizzas! and a Moon Patrol clone called Skunny: Lost in Space.
The game engine is the same as another Mario Kart clone called Wacky Wheels, which appears quite similar. They say the authors of Wacky Wheels, Andy Edwardson and Shaun Gadalla, sent a demo of their game, including the source code, to Copysoft. But apparently, Copysoft was not interested, and Wacky Wheels ended up being released by Apogee. However, just before Edwardson and Shaun's game was published, Copysoft released Skunny Kart. Well, I guess the name "copy soft" was not a coincidence.