Idea is crazy, but not original (Some game for Amiga and maybe c64 had this), some may feel strongly against it but this should be made so that that it can be turned off too.
Everyone remembers how controlling was done in Black & White? Got idea bit same type of controls that would be used in this mode.
Manual tire change, damage repair and refueling.
Car enters to pit and then view goes to external and you can rotate and tilt view similar way as in Black & White, tires changed with bolt gun, open bolt new tire animation, close bolt, operating with left mouse button, could have visible bolt gun as an arrow.
Damage repair, hammer symbol chosen from mouse wheel, hammer spot of damage with left mouse button, could have left front, left middle left rear and same for right side to keep thing simple.
Refuel, choose fuel can from mouse wheel, use it to fuel tank cap with left mouse button.
Done button click with any tool and return to car and controls back to normal driving.
This could be also multiplayer feature, team mate/s can be mechanics.
Also later there could be 3d model of mechanic that is moving and doing things, bit like adventure game character you command and he does, no completely direct control, but should not be too slow.
Naturally option so that is use on server or is not use on server, same for single player.
Everyone remembers how controlling was done in Black & White? Got idea bit same type of controls that would be used in this mode.
Manual tire change, damage repair and refueling.
Car enters to pit and then view goes to external and you can rotate and tilt view similar way as in Black & White, tires changed with bolt gun, open bolt new tire animation, close bolt, operating with left mouse button, could have visible bolt gun as an arrow.
Damage repair, hammer symbol chosen from mouse wheel, hammer spot of damage with left mouse button, could have left front, left middle left rear and same for right side to keep thing simple.
Refuel, choose fuel can from mouse wheel, use it to fuel tank cap with left mouse button.
Done button click with any tool and return to car and controls back to normal driving.
This could be also multiplayer feature, team mate/s can be mechanics.
Also later there could be 3d model of mechanic that is moving and doing things, bit like adventure game character you command and he does, no completely direct control, but should not be too slow.
Naturally option so that is use on server or is not use on server, same for single player.