Kyosho Mini-Z Mr04 RWD Porsche 934 RSR 1976 Vaillant #9 (N-Rm/Kt531p)
Key Specs
About this product
Experience precision racing at 1/28 scale with the Kyosho Mini-Z Mr04 RWD, featuring an iconic pre-painted 1976 Porsche 934 RSR Turbo body in authentic Vaillant livery. This ready to run RC car arrives fully assembled with the advanced MR-04 chassis, meaning you can start racing within minutes—simply add batteries and you’re on the track. Built for both casual enthusiasts and competitive racers, this electric radio controlled car combines heritage styling with modern engineering to deliver an unmatched driving experience in the Mini-Z by Kyosho range.
The MR-04 chassis represents a significant evolution in 1/28 Mini-Z performance, featuring a lowered centre of gravity for improved cornering and straight-line stability. Enhanced front suspension maintains optimal tyre contact whilst integrated kingpin design delivers sharper, more responsive steering. The rear suspension incorporates a coil spring damper to absorb track imperfections, with the option to upgrade to oil-filled shocks for competitive tuning. This electric RC car is engineered with full ball bearing specifications and supports numerous optional upgrades, including the optional gyro unit (sold separately), making it ideal for RC hobby UK enthusiasts who want to customise and develop their vehicle. The package includes the Perfex KT-531P 2.4GHz transmitter, pinion gear selection (6T–9T), and adjustment components for fine-tuning handling characteristics.
- Factory-assembled MR-04 RWD chassis with advanced suspension geometry
- Pre-painted 1976 Porsche 934 RSR Turbo body with authentic Vaillant #9 livery
- Lower centre of gravity for enhanced handling and control
- Updated front knuckles with integrated kingpins for precise steering
- Geared differential for smooth cornering performance
- Includes Perfex KT-531P 2.4GHz transmitter and full adjustment parts set
- Scale: 1/28 | Wheelbase: 86mm | Weight: 169.6g
- Compatible with optional gyro unit and extensive RC car parts for upgrades
What's in the box
- P 2.4GHz transmitter, pinion gear selection (6T–9
Frequently Asked Questions
The Mini-Z Mr04 is ready to run out of the box, making it accessible to beginners—you simply need to add batteries and you can start racing immediately. However, it's also built for competitive racers and supports extensive tuning options, so it grows with your skill level.
The product description confirms it requires batteries (sold separately), but specific battery type and charging times are not detailed in the product information. Check the manual or contact our support team for exact battery requirements and charge time guidance.
The package includes the fully assembled MR-04 RWD chassis with pre-painted Porsche 934 RSR body, the Perfex KT-531P 2.4GHz transmitter, pinion gear selection (6T–9T), and adjustment components for handling tuning. Batteries are not included.
At 1/28 scale with an 86mm wheelbase and weighing 169.6g, this is a compact Mini-Z designed for smaller indoor and outdoor tracks. Its size makes it ideal for hobby racing without requiring large outdoor space.
Yes—the MR04 supports numerous upgrades including an optional gyro unit (sold separately) and extensive RC car parts for tuning suspension, gearing, and handling. The package includes pinion gear options and adjustment components to get you started with customisation.

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