The 8815 go kart, released in 1991, was extremely similar to the previous set 1972. There were dual tires at each corner for extra width and a roughly square wheelbase. The steering used the flexible rack assembly. One rear wheel drove a single cylinder reciprocating engine. None of the new 1991 parts were used on this model.
There's nothing groundbreaking in this set, but you get introduced to a lot of features for a small price.
However a new phenomenon was introduced by Lego. This set belongs to a trio of sets where Lego provided a new set the Technic Racer you could build from this set and 8820 - Mountain Rambler and 8024 - Universal Set.
By Technicopedia