While enjoying the sights and sounds of Pebble Beach with our friends from Infiniti today, we couldn't help but notice a picture of the G37 convertible sitting on a table with some pen marks on it. Upon closer inspection, we discovered it was a sketch of how the car will look with the steel roof in place, and it was even signed by the car's Japanese designer, as you'll see in the full shot published below. That should mean this sketch is accurate. We snapped the photo and even tried (poorly) to color in the roof sections to get a better idea of how it will look. Unlike the BMW 3-series convertible, there won't be any special kinks at the bottom edge where the top meets the rest of the car, but instead will simply flow rearward.