Hi-Riser

thumb|A fourth generation Chevrolet Caprice hi-riser. This model Caprice is commonly known by the term "bubble" due to its rounded style. Hi-risers are a type of heavily-customized automobile, typically a full-size, body-on-frame, rear-wheel drive American sedan. They are modified by significantly increasing the vehicle's ground clearance, and adding large-diameter wheels with low-profile tires. Depending on the model, year and bodystyle, cars customized in this style can be labeled "donk", "box" or "bubble". Many within the community refer to this style of car as simply a "big rim" or "big wh