Note to the Lexus SC430: it is now beyond over for you. Infiniti, Nissan's BMW-hunting luxury brand, has unveiled the 2009 Infiniti G37 Convertible, a retractable hardtop 4-seater that preserves the Coupe's good looks even with its 3-piece folding metal roof neatly tucked out of sight, as you can see here. Power from the 3.7L V6 will be in excess of 320 horses, and numerous comparos against the BMW 335i convertible are inevitable. You can practically hear the buff mags reserving track time as we speak. Sunny Los Angeles will be the venue for the car's formal unveiling in November, and likely a fertile ground for sales when the time comes.