Speed Kings gets low marks in the audio department. Regardless of what the back of the box says, the game doesn't feature my favorite Xbox feature, Custom Soundtrack (unless it was hidden away in some secret menu I couldn't find). Others may not think this is a big deal, but after seeing the game fail to deliver as advertised, I felt cheated. It was like being told I would get front row tickets to see Robin Williams, but instead found myself at a Carrot Top show. This wouldn't have been all that bad if the soundtrack was good, but, like the graphics, the soundtrack is just something that's there and nothing to get excited about. The sound effects are okay, but leave much to be desired. Engine sounds lack any real power, and even the most massive of crashes sound like a cookie sheet gently tapping cement.