Before the trophy truck class existed, SCORE International's Class-8 regulations required all entrants to race vehicles built around production frames. This constrained development and limited the performance ceiling for competitors seeking to push desert racing to new extremes. The introduction of the trophy truck class in 1994 swept those restrictions aside, replacing them with minimal rules and maximum freedom in chassis construction.
With no proven formula to follow, early trophy truck designs varied widely, and no two trucks were alike. The open ruleset unleashed rapid engineering development. Over the following decade, specialist fabrication and engineering firms established themselves as the leading constructors of competitive trucks. Companies such as Geiser Brothers, Jimco, Racer Engineering, and ID Designs became closely associated with race-winning trophy truck builds. In more recent years, Mason Motorsports Inc. emerged as a notable builder, introducing an all-wheel drive platform that produced strong finishing results for top competitors.
Within SCORE International sanctioned events — including the Baja 1000, Baja 500, and other desert races on the SCORE calendar — the vehicles are formally called trophy trucks. In Best in the Desert sanctioned events, the same class of machine is referred to as trick trucks.
Trophy trucks are built around a 4130 chromoly steel tube-frame chassis, covered by an aerodynamically engineered composite body. A steel tube roll cage is mandatory for all trucks. The traditional drivetrain configuration is rear-wheel drive, a choice historically driven by the cost and engineering difficulty of building driveline components capable of withstanding the combination of high horsepower, high torque, and severe off-road loading. More recent development has seen multiple builders implement all-wheel drive solutions.
Gasoline-powered trophy trucks use naturally aspirated V8 engines, typically Ford or Chevrolet units, producing in excess of 1,100 horsepower and 950 lb-ft of torque. Turbocharged diesel engines are permitted under SCORE rules within a displacement range of 5.0 to 6.6 liters, with a maximum of two turbochargers, and must be fitted with an air restrictor to limit output.
Suspension travel is a defining characteristic of the class. Front suspension typically provides around 24 inches (61 cm) of wheel travel, while the rear delivers approximately 36 inches (91 cm), though exact figures vary with chassis design. Independent A-arm front suspension is the predominant configuration. At the rear, most trucks run a three or four-link arrangement with a solid rear axle, though independent rear suspension systems are also used by some builders.
Damping is handled by one or two shock absorbers per corner, usually a combination of a coil-over unit and a bypass shock absorber. Fox Racing Shox, Bilstein, and King Shocks are among the most commonly fitted brands at the competitive level.
Tyres are typically 39 inches (99 cm) in diameter or larger, mounted on 17-inch (43 cm) lightweight alloy wheels. Competitors carry two spare tyres as standard. Minimum wet weight is approximately 3,500 pounds (1,600 kg), providing the mass needed to manage rough terrain at speed.
Competitors choose between a three-speed automatic gearbox or a six-speed sequential unit. The three-speed TH400 automatic predates the Baja 1000 itself and remains popular due to its long gear ratios and proven ability to handle the torque spikes generated by off-road desert racing. The six-speed sequential alternative appeals to drivers who value the ability to change gear ratios quickly between events.
The SCORE International Rule Book defines and specifies trophy truck requirements in detail. The class is open production, meaning all components are considered legal unless specifically restricted by the rulebook. This philosophy has underpinned the class's engineering dynamism since its inception.