The nxt_robot_gyro_car package provides a starting nxt robot. For instructions on building the nxt robot load the gyro_car.lxf into the LEGO Digital Designer (ldd.lego.com) and select the building guide mode. This robot uses the nxt lego ultrasonic sensor, the hitechnic gryo sensor, and the hitechnic acclerometer sensor.
nxt_robot_2.0_quick_start is ...