New documents provide a glimpse into Apple's self-driving car program

Apple's secretive self-driving car project just got a little less mysterious. 
The Cupertino-based company was granted a permit by the California DMV to test cars on public roads in April, but the details on just what exactly it had planned were few and far between. We knew the permit applied to three self-driving Lexus RX540h SUVs, but not much more. 
SEE ALSO: We finally have proof Apple is working on a self-driving car
Thanks to California DMV documents obtained by Business Insider