I got new wheels and tires for my G500 a couple of weeks ago. They are AMG Style I wheels from the European G55 AMG. They are 18″ x 8.5″ wheels and are wearing Yokohama AVS S/T 285/55R18 tires. They look really good, do not compromise the off-road capbilities of the vehicle, and provide much better grip and handling on-road. In addition, I had a wireless tire pressure monitoring system installed. It is manufactured by SmartTire and is excellent! It even includes a nice LCD display on my dash that displays the pressure and temp of each tire and has customized alarms for various low pressure situations.