The Mercedes-Benz SL55K has one of the most easily-tunable power plants ever made, designated as the M113K. Enthusiasts enjoy the supercharged SL55K platform for potential reliable and affordable power increases by cranking up the boost with a simple fifteen-minute modification–a reduction pulley...

I bought a 2004 Mercedes-Benz SL55 on the used car market, and after just one week of ownership, the engine seized. I was on the side of the road. Here's how it happened.  In this story: Why my new-to-me Mercedes engine seized What NOT to do when your car dies The crazy $$$ the dealership...

The 2004 Mercedes-Benz SL55 AMG is one of the greatest cars ever made. It's not just the top speed of 208 mph, or the timeless styling, or the sound, the power, the stereo, or the massaging seats, but rather an affection that's more than the sum of it's parts. I don’t mean a car you enjoy as it...