Superstocks
From Infogalactic: the planetary knowledge core
Previously known as A Grade Stockcars, Superstocks are a premier class of New Zealand speedway (dirt track racing). Cars have strong roll cages designed to protect the drivers. Superstocks weigh 1400 to 1500 kg and are usually powered with modified V8 engines of up to 248 cubic inches. Contact between cars can be rugged and is intended as part of the class.
