The Splitz-6 ATV is a 6 wheeler ATV found in Grand Theft Auto: Vice City Stories. It is capable of traveling on land and water. It drives slow on land, but is very slow on water. The Splitz-6 ATV has the same engine sound as the Comet, Infernus, and the Stinger, strangely enough. It cannot be found driving around Vice City, just like the Quad and the Dozer. It is based on the Amphicat ATV. The name comes from the TV show, The Banana Splits, which featured an Amphicat as their car.
Can be bought at the Compound for $4500 (only after mission Zero to Hero)