This weekend is of course the big Pebble Beach Concours d'Elegance in Monterey, California, and a number of automakers will be on hand to debut vehicles there. Infiniti is one of them and will be showing off a few new models on the greens of Pebble Beach, one of which is this, the G37S. What you see is not much different than the G35 on sale now, save for a few exterior tweaks including new wheels. What is different is that Infiniti's G sedan will get the same mechanical hardware found in the G37 Coupe. That means the superlative VQ-series 3.7L V6 producing 328 horsepower will be standard equipment, which necessitates the change in nomenclature for the 2009 model year from G35 to G37. Transmissions will include a 6-speed manual or Infiniti's new 7-speed automatic, and the brand is also offering a new optional brake package that adds 4-piston front/2-piston rear brakes and larger rotors. Those wheels are the new 18-inch wheel design with standard Scratch Shield self-healing paint. Infiniti will show more this weekend than just the G37S, including the G37 convertible and G37x, and we already have bloggers in place on the back nine to report it all.