Haven't driven a P10 but I've driven a P11. I didn't like the feeling of the rear beam. I don't like it on my moms 2011 Sentra either.
The P11 is a good looking car but that rear beam has to go.
As for banging chics out in a car. I think the NX has the win in that department. If you fold over the rear seats and have nothing in the hatch area you get some nice loving space. Bam chica wow wow.
I've been a b12 and b13 owner. As much as I love my B's I think the P10 is a better overall car.
Here are my reasons.
I think it looks better. Coefficient of drag is the best out of all the cars. Chics probably would prefer to be picked up in a nice looking G20. The P10s aren't that much heavier than the B13s. Front suspension is a better design.