If the title of this thread was 'data aquisition' instead of DL-1, I would offer the Race-Keeper data and Video acquisition system. Three axis accelerometer, GPS based, up to 4 camera inputs, 8 analog inputs, wireless dash display, 3D video capability and 15 minute installation without drilling holes.

Just named Official Video Data system for World Challange for 2010, 2011, and 2012.

www.race-keeper.com