Here's a nice small project from amstudio, if you wish a handbrake on a budget (and you are good with your hands) 
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Author's comments:
This handbrake is designed to have a small foot print, be easy to setup and pack away when not in use.
Make this USB controlled handbrake for Drift, Rally and Racing simulator games. USB can be used in combination with any steering wheel Logitech G27 G29 G920, Thrust master or Fanatec
No modification is need to the original gaming unit when using the USB version of the Handbrake.
There are 2 ways to wire the handbrake, direct to the gaming controller. Or using the PCB of a spare keyboard.
The PCB from the keyboard can be used to control many switches or buttons. Each keystroke can be mapped to control many in game features.
. Author's comments:
This handbrake is designed to have a small foot print, be easy to setup and pack away when not in use.
Make this USB controlled handbrake for Drift, Rally and Racing simulator games. USB can be used in combination with any steering wheel Logitech G27 G29 G920, Thrust master or Fanatec
No modification is need to the original gaming unit when using the USB version of the Handbrake.
There are 2 ways to wire the handbrake, direct to the gaming controller. Or using the PCB of a spare keyboard.
The PCB from the keyboard can be used to control many switches or buttons. Each keystroke can be mapped to control many in game features.
