A Rally Car, features steering, suspensions, fake engine and removable optional motorization.

Building a car at mid-scale was a target for me for a while. I didn’t want to make classic supercar with suspensions, steering and gearbox, that is why, I have developed the removable motorization, by using a simple lever this supercar can switch to manual functioning or motorized. This supercar has the following functions :

• Steering with Hand Of God and Steering Wheel
• Suspensions
• All wheel drive Transmission with 3 differentials
• Fake V8 Engine
• Openable Door and roof
• Removable optional motorization

The removable motorization is made with a special translated frame, on which the motors are connected. The two L motors are mounted on this frame, the lever operates a 12-tooth gear on a rack pinion, then the rack moves the frame.  In first position, the motors are not meshed with the transmission, in the second position, the 24-tooth gears on the motors are meshed on the central differential of the transmission which drive the car.

Concerning the steering, it is also removable to enable manual or motorized function. The frame which moves with the motor moves also the servomotor used for the steering. Thanks to a lever and a connecting rod, the servo-motor is moved with the rack. Then a special clutch enables the working of the functioning. This clutch is composed of two pulleys with 3 axles pins which meshed with other 2 pulleys.

Concerning the design I would like to make a 90’s rally car design with angular shaped and tailgate. My inspiration was the Group B Rally Car, for instance Lancia S4, Audi Quatro, Peugeot 205 and Lancia 037. I have worked many hours to get the correct shape, regarding the color, sharpness and homogeneity of the design. I am quite satisfied.

Also, I have made a openable light which is controled in the interior with a lever and a connecting rod. Also the doors and the roof can be opened for displaying the engine at the rear.

You can see here the behind of the car with the transmission, suspensions and motors. Regarding the mid scale and the power functions, there is no more room inside.

The performance are good, not as I expected due to the weight but are nearly correct for moving at correct speed the car. In any case, I didn’t want to sacrify design rather playabily, I want both. I find that this type of hybrid functions are good for supercar, manual functions and motorized when it is needed.

The video of the Work In Progress chassis, which shows better the functioning or the motorization :

I have of course made the building instructions, you can download it as PDF or by browsing the gallery :

Downloading the high definition PDF building instructions. Lego rally Car By Nico71 – 14 mo, PDF

Want to check before if you can build the Lego Rally Car ? The Rally Car has been indexed to Rebrickable.com, the website which matchs your parts with mocs !