drive stadium truck, had 0.15 in³ (2½ cm³) engine. RC electric vehicles offered the more popular 4 by 4 system. TR-15t was not popular. Tamiya released its second nitro vehicle, Mad Bison, in 2000. Mad Bison was simply a four-wheel drive on-road car with off-road tires, utilizing already released F-150 body. Its poorly located reduction gear bulged under the chassis to compensate for larger tires caused the vehicle to bottomed out easily, also suspension was ill-suited. It was a halfhearted attempt to offer a nitro vehicle to the market; again it was not a hit. Unlike its two predecessors, Terra Crusher was designed from scratch to take on T-Maxx, world's most successful nitro truck at the time. New to Terra Crusher were a double wishbone suspension with two shocks per tire, a differential for reverse gear, on-board starting system, and telescoping universals. Mechanical design Terra Crusher's was built to compete with T-Maxx. Two extra long shock absorbers were installed on each double wishbone suspension to ensure long soft travel. The two speed transmission and reverse worked differently from T-Maxx's. Differential gears in the center worked as a reverse gear and the two speed had a centrifugal gear change. The two channel radio meant that one throttle servo worked to increase or decrease engine RPM, brake, and reverse gear. This complex throttle design proved delicate to set up. The mechanical design itself was sound. Wild Commando and TNX both have same design, and TNX is a race-winning vehicle. Design flaws The Crusher's tires proved to be too heavy for the engine. Each wheel and tire weighed between . A set of four wheels and tires weighed over , the weight of an entire on-road car, and bringing the total weight of the truck to . Team Associated's Monster GT, has tires with the same dimension, but they weigh much less. Simply by installing Monster GT's tires, Terra Crusher's weight problem could be readily remedied, as TNX in recent years have proved. Its 3 cm³ engine was slightly bigger than the 2.5 cm³ engine of T-Maxx; however, that increase was not sufficient to overcome the doubling of the total mass. Immediately after the release of Terra Crusher, it became evident that the truck's performance suffered because of the weight of massive 175 mm tires and lack of power from its 0.18 in³ (3 cm³) engine. In addition, L-shaped exhaust manifold decreased the