Note: I know this version of the i8 doesn't exist. This MOC is a mix between comercial i8 and i8 Concept Spyder.
This is my first complex car in scale 1/10.
The overall size is 58x25x16 studs (46x20x13 cm).
It is powered by 5 PF motors and one servo motor, 2 IR receivers and 2 pair of lights.
The only weighs 1.9Kg.
Front and rear lights.
As the Spyder version it has folding roof. In the Concept Spyder, BMW never showed the folding roof mechanism, so I have designed my own mechanism and the way to hide the roof under the engine cover.
Openable doors from the controller. Only one M motor control both doors.
Each turning motor direction connect to one door.
Of course it has steering with working steering wheel and a complete interior with full size seats..
Hibrid drive system.
Here the most important part of the car(at least for me).
Like the real i8, this MOC is driven by Hidrid Drive System. Two different drivetrains working together to get the best available performance.
The front axle's drivetrain is powered by XL motor and has 2-speed gearbox(3:1 and 1:1 ratios).
The rear drivetrain is powered by 2L motors, and include a servo motor to change the drive mode.
It can work under two different drive modes that you can change instantly from the controller: eDrive and Sport.
The car works as a normal front wheel drive car. The real axle car turn free and the front gearbox is un low gear.
The max speed is around 1.5Kph.
When you connect the Sport mode the 2L motors star runing, and the servomotor connect the rear axle to the L motors and at the same time change the speed of the front gearbox.
So now the car is AWD with a long gear ratio.
The rear transmision has only one speed, and the ratio is the same as athe front axle in high speed ratio.
The max speed is around 4Kph.
Also the servo motor connect the folding roof. Powered too by the same 2L motors of the rear drivetrain.
Drive mode indicator in the interior.
3L fake engine working with the rear divetrain L motors. So it only works with Sport mode.
Leaving the eDrive mode as a "100% electric mode".
Battery compartment on the rear axle.
The most wanted picture.
Front axle with double wishbone suspension and double steering arn to improuve the performance
Rear multilink suspension. Suspension formed by 5 links: two upper links, two button links and a control link.
The bodywork is easy to dissasemble. You only need to remove about 15 pins to remove the bodywork in a few big parts.
New special controller to help you to control easily the hidrid drive system.
Finally as always a complete video showing all its functions in detail