WWWwwwwwwwhhhhhhhhhaaaaaaaaaaa???
I didn't know you could do this in GT4...
I thought all convertibles were automatically top up, so that the PS2 wouldn't have to render the driver(s). Then there were the cars with no roof, which were only drivable when no other cars were on the track (Caterham, Auto Union, etc.) Lastly there were a few race cars that had to top, but were still raceable with other cars (Pescarolo, Audi race cars). I would imagine though, that GT5 should be able to handle the drivers. It would be cool in one make races like mx-5 cups and things to be able to see all the driers (especially since we get to design our own racing suits).