Has anyone tried installing the 'brake hold' feature into these cars? Maybe we could use one from a newer/higher end infiniti if they have one. I know the MDX has it and it is gold. Really makes you less tired without having to hold down the brake at lights.

 

lol what world have we come to where someone cant just hold their foot on the brake at a light jk
Most likely will be a near impossible job cuz you would have to retrofit it and would take a lot of time to even do. A lot of things can go wrong during or after the install, I wouldnt personally try it myself.

 

The only thing I can think off is a "trans brake" solenoid. They use it in the drag strip to lock the front wheels while the driver preloads the suspension.
The way it works is you install a solenoid to the rear. When you get to the light hit switch with the brakes on then release the brake. It will hold brake pressure to what ever wheels the solenoid is blocking.
Then switch off and brakes are disengaged.

Too much work for what you intend, more so towards racing.