RC racing pros, get ready for the Kyosho MINI-Z MR-03EVO SP Chassis Set! This is a super high-end, almost-ready-to-run 1/28 scale chassis. The 'SP' stands for special – it's a limited red edition packed with upgrades. It comes with a screaming 8500KV brushless motor, nickel-plated screws, an oil shock, and a special colored Ball Diff II right out of the box. The coolest feature? It has a modular receiver bay. You buy a separate tiny receiver module (sold separately, models listed for Futaba, KO, Kyosho transmitters) and plug it in, so you can use your favorite high-end transmitter! You can even adjust the gyro settings (for steering and throttle) on the fly from your transmitter. The chassis is a MR-03W-MM type (wide mid-motor), with adjustable front suspension arms for tuning. What's in the box? The nearly assembled chassis, front width conversion parts, pinion gears, spacers, and tools. What do YOU need? A compatible transmitter, the correct Rx module, 4x AAA batteries for the car, a Mini-Z Auto Scale body (sold separately), and tires. This is for serious hobbyists who want the ultimate in small-scale tunable performance.