Something that's come to my attention over the past few months is that the engines on most modern Toyota vehicles have a tendency to make a rattling noise.  At first I thought it was just my car, and I thought it only happened in the summer.  I only noticed it when I had the windows down and my car would pass by something like a guardrail, causing the sound from the engine to bounce off the guardrail and into my car.  I thought I might have a problem with my engine, but I figured I'd wait until something caught fire or exploded.  But then I started to notice the noise when other cars passed me on the road, or when I was walking around the parking lot at work.  It was the same exact noise my car made, and it just so happened that it was coming from Toyotas.  I don't know if it's a problem or not, but at least it's not just my car. #travel