Port to new car, upstream the code, get paid
Code must be merged upstream into openpilot devel. System must have both longitudinal and lateral control working, with similar quality to the Honda Civic. If the car doesn't ship with a radar, adding an external one is okay. External actuators don't qualify, port must use built in ones. Extra interface hardware is fine if required (like for Accord). Port must follow safety rules to be upstreamed and eligible.
Chevy Volt -- $10,000
High end trim includes a radar and adaptive cruise control. Tap into the existing LKAS system and upgrade it!
Ford Fusion -- $10,000
If you've used the stock system, you know this car really needs the upgrade. Must be a production car, dataspeed kit car not eligible.
Toyota Prius or RAV4 -- $10,000
So many ways in! See Adventures in Automotive Networks and Control Units for a place to start.
Tesla Model S (No AP, AP1, or AP2) -- $5,000 + $100
Steering controller can be commanded over CAN on all Model S. Old Model S don't have a radar, adding one is fine.
Jqgould, +$100 for No AP Model S
Honda Accord or Acura MDX -- $2,000 + $500
Has the same connector as the Civic. Brake is the same. Steering is done over a 9600 baud LIN connection, marked as EPSTOLKAS and LKASTOEPS.
iamwill, +$500 for Accord
Honda CR-V -- $1,000
Easiest one on the list. The 2016 Touring has the same connector as the ILX and Civic. The brake packet is the same, the steering packet is very similar. Well within the realm of a weekend project.
How to claim
After you have a port working up to the point that it has driven 6 minutes in stop and go traffic and follows the safety rules, submit it as a pull request to openpilot devel on github with the title "Bounty: <car model>".
You then have a lock, and as long as you are working with us to upstream it, no one else can claim it. Once it's merged, we will pay out via check or wire transfer.
The above bounties are sponsored by comma.ai, if you'd like to sponsor a bounty or contribute to one, let me know on twitter. If you port to a car not on this list in a way that can be upstreamed nicely, we will consider paying out a custom bounty. More popular car = more money.