Originally Posted by Cheech

If it's after you've washed your car, it is most likely water. I find there are a couple annoying spots you have to pay special attention to after washing the Z. The worst is the tail lights, water runs down and pools under the lights. So what you have to do is, take a deep breath, bend over, pucker and give the tail a blow. If you do it right, you'll see it run down the *** of the car. Best to do it somewhere where your neighbours won't see you. They might think you're weird or something.