Question abou the Roland FP series

[Xsao]

I really like the FP3 (heard a video and it sounds so freaken good)

So I know they discontinued the FP3 so which keyboard has more of the FP 3 piano grand sound?

the FP4,5,or 7?

Thanks!!

and can someone give me a low down on the FP series. (why do they have so many in the series and which one has the best piano grand sound, etc etc.

THANKS