| New Zealand Superstock Championship | |
| Category: | Superstocks |
| Country/Region: |  New Zealand |
| Inaugural: | 1965 |
| Drivers: | 125 (2020) |
| Champion Driver: | Asher Rees 1NZK (2021, 2023, 2024, real number is 126K) |
Superstocks (previously known as A Grade Stockcars) are a premier class of New Zealand Speedway (dirt track racing). Cars are of bespoke design with integral roll cages built to rules provided by Speedway New Zealand. Superstocks weigh 1400kgto1500kgkg (3,100lbto3,300lbkg) and are usually powered with modified production car engines of up to 248cuin. Contact between cars is allowed and is intended as part of the class.
Cars are purpose built by numerous different builders throughout the country.
Among others.
Superstocks usually run engines such as
Cars come in all different shapes and designs, varying from the ever-popular and successful Gordge chassis, through to the 'Tank" popularised by Dave Evans.
Superstocks compete in individual championships nationwide, including:
These championships are seen as the major events, and the big ones to win. Numerous other events are run throughout the country, ranging from track championships through to series run over a number of meetings.
Another major meeting, is the annual New Zealand Superstock Teams Championship, run at Palmerston North International Speedway, in the first weekend of February.