Lately, especially in colder weather, the car emits a high-pitched squeal when I first start the car.

WSJ: Why Do Coupes Cost More Than Sedans?

Like all new features in cars that have yet to hit the market, this technology will most likely be seen first in the high end or luxury car market.

FORBES: Sensors To Detect Driver's Fatigue

In a neighboring hall at the Paris show, Audi is teasing visitors with the eTron Spyder, a convertible version of the high-performance electric sports car the Volkswagen AG luxury subsidiary first previewed at the Frankfurt Motor Show a year ago.

MSN: A battery beats at the heart of these muscle cars