REALLY bad idea.
I work in IT, I've worked on the kinds of electronics and microcontrollers that are used to control acceleration and braking, and frankly, it's a buggy, glitchy technological framework. The shit needs to be run by hydraulics and cables, not software and firmware.
You know how Farmville won't even load right on a laptop with too little memory, and the avatar pops up bald and you can't see your crops?* You know how Office 2007 is SLOWER than any Office product package ever, and you can't find any of the commands and functions you spent over a decade learning? You know how the dude at PWN2OWN just found 20 bugs in Safari, IE8, and Adobe in a few minutes using a really basic fuzzing program?
THAT'S the shit we're trusting to take us from 0-60 in 3.5 seconds, to control the velocity and acceleration of a metric ton of mass while we trust a thin strap and a balloon to save us if it fails.
Electronics, programming, sensors, and the computers they put in cars are dangerously unsafe.
Oh, uh... This is supposed to be a blog about magic... uhm...
You wouldn't trust Microsoft or an EPROM with managing your initiation into the Sphere of Saturn, would you? Then don't trust the same technology in cars. It's dangerous. One memory buffer overflow, and you're rapidly accelerating with the brakes fully applied and the multi-million dollar industrial complex will do everything in its power to bury the truth and make you look like a liar.
And Toyota is secretly an Illuminati cover for a Bilderberger plot... and... uh, aliens! The technology is based on recovered alien tech from Roswell, and it doesn't work for humans because... uhm, because... because they were silicon-based lifeforms who communicated directly with the circuit boards and we can't so ... uhm, it doesn't work for us.
And that's why we have to recompile the kernel.
There. It's a magic blog post now.
* My spouse plays it, I used to, but it got to be stupid after a few months. It's very zen, though. I planted crops, watched them flower and grow, harvested and saved my money up, and sometimes I'd just let the crops wither and die to remind myself of the Circle of Life. Uhm... Ok, the truth is I forgot about the freaking blueberries and strawberries and cotton I planted to make a huge American flag after timing everything to bloom just right, and they died and I had this ugly brown flag, and I was all pissed about it, and then I realized I was WAY too into this fake farm with fake crops and fake stuff.