See also:

Misfuel prevention (diesel)
Mechanical device which prevents filling the tank of a Diesel vehicle with petrol. It avoids the risk of engine damage that can result from filling with the wrong fuel. Located in the filler neck ...

Manual gearbox
The gearbox does not require any maintenance (no oil change). Refer to the servicing booklet for the details of the level checking interval for this component. ...

Then one day someone has an idea.
What if, to make manoeuvring easier and increase driving sensations, the diameter of the steering wheel were reduced? And what if, to make it easier to read the information on the instrument panel ...