I need Cryengine Sandbox Speedometer and Tachometer

We want to get working Tachometer and Speedometer for a car in latest Cryengine Sandbox.

You will find how to make it using existing features of Sandbox, or make your own.

Car should be able to be set up with distinct gears ratio and it should shift gears up/down during acceleration/decceleration,

making rpm lower/higher and so on.

Also it should be possible to shift gear up/down manually, so car should act like in any other racing game.

Not like now - only accelerating/deccelerating without gears.

Sandbox has some of these features, they just requires to be set up.

Skills required are C# Programming, C++ Programming