W keys: Move forward 

S keys: Move reverse

Down Arrow key: Break

A keys: Steer Left

D keys: Steer Right

V key: Change Camera View

X key: Toggle Cinematic Camera

L key: Toggle HeadLights

K key: Flash HeadLights

Z key: Left Blinker

Q key: Right Blinker

Tab key: Turn Radio ON/OFF 

Tab Key: Switch Radio Channel

Use Mouse Left Click: Change Menu options

B, I, U, and maybe some other keys currently cause errors and freeze gameplay. I'm working on fixing this and setting more commands.

More information

Development log