A Bright Spark This Mini 4WD racer assembly kit creates the Spark Rouge, a powerful-looking beast inspired by modern 2-seater midship sports cars. An eye-catching wedge-shaped design culminates with a low nose and is accented by raised front fenders and a rear spoiler. What better racing color can there be for a body than red? Here, it is combined with metallic stickers, and paired with the aerodynamically-efficient MA Chassis. The Ultra-Efficient MA Chassis The MA (Midship AERO) Chassis has its motor in the center, and features a design which focuses upon achieving outstanding aerodynamic performance. It has a gear ratio of 3.5:1, 6 individual low-friction rollers, a rear skid bar and other speedy features developed thanks to years of design experience. The single-piece monocoque frame also guarantees that assembling and keeping the car well-maintained is a task that can be performed by beginners and veteran racers alike. The MA chassis is molded in Gray ABS resin with Light Gray gear cover, skid bar and other parts, which contrast nicely with the yellow fin spoke wheels. The model features a 3.5:1 gear ratio.