From what I remember reading in Motor Trend a couple of years ago, pressure sensitive brake lights are not street legal. However, this summer I saw a BMW motorcycle that seemed to have pressure sensitive brake lights. The idea behind them is very intuitive, the brighter they are the harder the brakes are being pressed. I am very much in favor of having pressure sensitive brake lights. I also like the idea of LED taillights, the tend to look very good but LEDs that can handle the voltage or put out the neccesary brightness tend to be expensive, >$1 a per LED. Having both pressure sensitive and LED brake lights is an impossiblity I believe, unless you turn on/off LEDs as the brake pressure changes, because LEDs are either on or off they can't be modulated like a conventional light bulb. An easy way to solve the expense problem of LED tailights and HID headlights is to combine them into an options package along with things like navigation systems or special apearance packages. That way those who want a no frills basic car can have one and those that want all the coolest gadgets can have one and neither person has to settle.