Tamiya’s Mini 4WD ... toy cars powered by AA batteries, which have no remote control and are guided around a plastic track by horizontally oriented drive guide wheels. Tuning and racing these ...

"Mini 4WD model car racing is a big thing here. In a tiny place like Hong Kong, there are more than 100 tracks," says Tsang. "Wherever there are industrial buildings, you can find tracks.

is a champion in the sport of mini four-wheel drive (Mini 4WD) racing with his favorite electric model car, Soldier. He wins the Grand Prix race against his rival, Waka, and breaks his record for ...