Smart tires are our destiny according to Freecale, which says 18-wheeler fleet managers claim they can save $ millions on tire wear and preventive maintenance (as well as keep a tab on how safe their drivers are being). Tire pressure sensors are now standard equipment on most cars worldwide, due to government mandates. However big-rig trucks are exempt, but by adding special high-pressure sensors and accelerometers to thier portfolio Freescale plans to change all that, making "smart tires" the standard on every vehicle.