Similar to the human body, cars that aren't right will experience certain symptoms. These telltale signs can come as sounds you can hear or, in some cases, exhaust smoke you will see. Colorful ...

It doesn’t really imitate tire smoke, since it disappears nearly the instant the car moves, but it’s still a neat effect. It’s a neat build that makes a great starting point for your dive ...

During normal operation, the emissions from a car's tailpipe should be invisible. But what if they're not? Should you be worried if you notice what looks like smoke? What should you do?