1. Not much of an issue in a car, to be honest. I, for one, don't notice that millisecond delay between an LED light up time and an incandescent light up time.2. This is very LED dependent. This depends on the size of the LED, the material, the color, the input voltage, the input current, and the rated output.3. In a car application, how so? The LED module still takes a 12V source (might be 5V), the same as a incandescent bulb setup. If a single LED has an input voltage of say 3V, and the car voltage is 12V, then you'll have to have a voltage step-down circuit within the LED module. The voltage being input to the module and the incandescent bulb would therefore be the same.4. This, as stated before, would be dependent on quality and the voltage. You'd have to assume that the proper voltage and current are being input into the LED. If the voltage isn't right, it could cause premature failure.5. In the case of the 06-07 Accord tail lights, the color of the LED is clear. Sure they may have colored LEDs, but they are expensive, with blue being the most expensive.6. They are durable, but can be damaged. Especially if you hook it up backwards and pass the reverse breakdown voltage.7. Long life is dependent on quality and the circuit.I'm being a bit of a devil's advocate there. I agree though, I prefer LED taillights. If one of them goes out, I'll just open up the module and solder a new one. Granted, it would take a bit of research first.
