The Siemens VDO TPMS places unique valve stems and sensors into each wheel that can detect changes in tire pressure and alert the driver by a radio signal sent to a control unit inside the car. Low tire pressure is a common problem on passenger vehicles that results in higher fuel consumption and tire wear. If there is not enough air in the tires, they will spread and the rubber can become hotter. This heat can lead to the tire splitting away. Besides being one of the most common causes of breakdowns, low tire pressure leads to higher rolling resistance and therefore higher fuel consumption as well. No word on pricing as of yet.
[Source: Siemens VDO via gizmag]