Hello,
Our questions deal with the companies already playing in this area
(Tire pressure monitoring systems).
We are looking for the following details:
Who are the market players in the tire-pressure-monitoring-systems
market for cars and trucks; their sales in 2004 and their market
share?
Regarding the companies products for tire pressure monitoring
(separately for the cars market and the trucks market), what are the
product prices, sales of this product in 2004, the sales forecast for
the coming years, and the product market share.

The products and companies we know about are: 
1. TireWise    by  Smartire
2. TyreShield  by  A.I.R. Automotive System LTD.
3. RunSafe     by  STI
4. SmartValve  by  Schrader Bridgeport

Thanks