Engines

• The 2006 Mercedes-Benz CL500 sports coupe came equipped with a 5.0-liter, 302-horsepower V-8 engine that produced 339 pound-feed of torque. It also had a seven-speed automatic overdrive transmission. The 2010 CL600 featured a 5.5-liter, 510-horsepower V-12 engine, producing 612 pound-feet of torque. It came with a five-speed automatic overdrive transmission.
  
  

Price and Mileage

• The 2006 Mercedes-Benz CL500 originally sold for $95,500, while the 2010 CL600 came with a $143,592 price tag. Gas mileage varies between the two cars with the 2006 CL500 getting 16 miles per gallon in the city and 24 mpg on the highway, while the 2010 CL600 gets 11 mpg in the city and 17 mpg on the highway.
  
  

Dimensions

• The 2010 Mercedes-Benz CL600 sports coupe measures 199.4 inches long, 73.7 inches wide and 55.8 inches tall. The 2006 CL500 was 196.6 inches long, 73.1 inches wide and 55 inches tall. Curb weight for the 2010 CL600 is 4,884 lbs. while the 2006 CL500 weighed in at 4,654 lbs.