~5% of David's Merceds' sounds will be donated to the public domain
At the time of this post, USD363 353 are missing and 8 days are left for TrackTimeAudio's Mercedes Sound Recording Kickstarter Project to be crowdfunded.
In a recent update, it was announced, that 5 to 10% of the more than 200 resulting sounds will become freely available.
Free, open source projects that could profit from this include TORCS, Speed Dreams, Trigger Rally, Stunt Rally, Rigs of Rods and many more. It would be delightful to see if advocates of free content licensing would bring this project to a "funded" state and further with many small contributions. (And remember, this will allow you to comment what your incentive for supporting was :) ).