Tamiya 19445 Buster-Sonic Premium AR Chassis Mini 4WD Kit - Tunable Race Model  [19445]

Buster-Sonic Premium - precision styling and track-focused design

The Tamiya 19445 Buster-Sonic Premium, built on the AR chassis, showcases careful engineering and a dynamic silhouette. Inspired by the Mini 4WD series "Let's & Go!!" and Retsu Seiba's famous machine, this kit blends collectible appeal with practical race performance for club racers and hobbyists.

Streamlined body and modern finish

Designed for low drag, the Buster-Sonic Premium features a smooth white ABS body that reduces turbulence while cornering. The metallic sticker set updates the classic look and helps the car stand out on race day or in a display case.

AR chassis tuned for airflow

The AR chassis provides an aerodynamic base, moulded in metallic gray ABS with contrast red A parts for easy identification during maintenance. Its layout encourages effective airflow management to help maintain speed on straightaways and through bends.

Tuning and upgrade paths

Racers can tailor the Buster-Sonic Premium to track demands by upgrading motors, adjusting gearing, or swapping tyres. The model ships with large-diameter yellow wheels and black tyres for good traction, and the stock 4.2:1 gear ratio delivers a balanced mix of acceleration and top speed.

The Buster-Sonic Premium balances visual authenticity with practical upgradeability, making it a strong choice for racers who want an out-of-the-box performer that responds well to tuning and track setup changes.