The Mini Stocks are 4 cylinder production cars modified for safety and performance.  They turn similar lap times to the Street Stocks, relying more on corner speed with their lighter weight and smaller engines.  Today the division is comprised mainly of Ford Mustangs, but as of 2015 fuel injected cars have been allowed and join in the ultra competitive division.  Some of the cars that have entered over the years were an Acura Integra, Honda Prelude, Saturn S-Series, and Chevrolet Cavalier.