BMW invited selected automobile journalists at the Laguna Seca to the BMW 330i Track Trainer. This special software uses a combination of built-in GPS, a signal booster and accompanying repeater, custom map of the track and a trained driver to show it the optimum racing line. The Track Trainer is made out of complex algorithm to determine theoretical grip while wheel speed and spin sensors send data to the computers to interpret the exact amount of suspension load, power delivery and braking force necessary to keep it out of the weeds. A driver feedback display mounted on the center console shows drivers how close the car is to the optimal line while in control. See what Autoblog and TopGear says about the Track Trainer on these videos:
[youtube]http://www.youtube.com/watch?v=Kc5JED8TgwI&feature=player_embedded#at=80[/youtube] [youtube]http://www.youtube.com/watch?v=KgJjZWIUBEs&feature=player_embedded[/youtube] [youtube]http://www.youtube.com/watch?v=0qXld089KqM&feature=player_embedded#at=96[/youtube]