Federal Tires Pro1 – The fastest off-roaders and Baja Bugs race here. This group allows engines that develop extreme horsepower. Race cars that use any type of suspension system. The gearbox of your choice, sequential, automatic or something even more exotic. ORANZ Class 1 & Class 9 – all specifications are as per ORANZ rulebook.
Carlton Party Hire ThunderTrucks are the Heavy Metal racers. Highly modified V8’s thru to street legal and road registered 4×4’s and everything in between. Big, fast and loud – spectators get ready. These are the racing 4X4’s. ORANZ Class 8 & Class 4 – all specifications are as per ORANZ rulebook.
Cooper Tires ProLite is a Race Truck formula. Similar body shapes. These pick up trucks can run a range of engines. Close racing is virtually guaranteed. ORANZ ProLite – all specifications are as per ORANZ rulebook with a special dispensation that may be available for rotary engines and independent rear ends.
Lucas Oil Challenger – Stadium Offroad brings out the highly competitive 1600cc VW powered racers to race with the highly modified buggies that run a smaller race engine. ORANZ Challenger Class & Class 5 – all specifications are as per ORANZ rulebook.
Yamaha Ultra4 – the unmodified, off the shelf, manufacturers class of Side by Side racers. Big fields, close racing. You can buy brand new and go racing. This group of racers has complete beginners and seasoned veterans racing. Some have had illustrious careers in motor cross. Some racers have come straight our of KiwiTruck racing. This is maximum attack and great to watch. ORANZ Class U & Class 10 – all specifications are as per ORANZ rulebook.
Polaris Ultra4Turbo – this group of races has delivered many overall national champions to Offroad racing. The experienced racers are dominating everything from shortcourse to enduro racing. With great suspension and awesome gearing these beasts are unstoppable. ORANZ Class S – all specifications are as per ORANZ rulebook.
Repco Ultra4Pro – a demonstration class that runs to the USA Championship Offroad Rules. This is a fast class of racing that is the premium UTV format for racing shortcourse in the USA. Running exclusively as a ORANZ demonstration class at Mickey Thompson New Zealand Stadium Offroad Championship 2021
BSL Racing Modified – graduating from KiwiTruck to Modified has provided young drivers a simple modification to keep racing and to hone there craft. Now with more horsepower and a sequential gearbox the KiwiTruck suddenly got faster and much more dynamic. ORANZ Class M – all specifications are as per ORANZ rulebook.
Please Note: Mixed Classes will be handicapped during Heat races to provide close final laps between differing Classes in Group. Group make-up may be adjusted on the day to maintain racer numbers on the track.