4 Wheel drive remote control modification building instructions for the LEGO® Technic 42077 Rally Car set.
The upgrade includes:
- 4 wheel drive with 4 L motors
- Steering with Servo motor
- 4 Power Functions lights
- Working steering wheel
- Working cooling fan placed above the engine
- Working V6 engine
- Powered by 2 BuWizz units – can be purchased here
You will need the original instructions as well to complete this build.
Part list can be found at the end of the pdf file and also on Rebrickable.
