How much Infiniti G37 Coupe convertible would be when it will be released?

im talking in canada, we have the AWD, Sport and M6 all around 47,000 and they are between 300-330 HP, but i read the convertible will be 500HP (wonder what people going to do with all the horse power), how much would it be? and would it be worth to waste that much money for a car like that instead of getting bmw convertible? altho the trunk size wont be big as the regular one.|||the g37 convertible will not have 500hp. It has the same 3.7L motor as the hardtop g37 pushing out 330hp. The convertable will most likely be around $45k.