[lunarhighway]

on most cars theres a difference in angle between the windshield and the hood, and this creates a high pressure pocket in front of the windshield that shields the wipers somewhat and also feeds the air intake.
on the picasso the overall shape is better but this meast that the whipers are more exposed and the air feed for the ventilation needs to employ a scoop like shape.

you'll see that on some mpv's like the picasso there's a bit of a recess at the base of the windshield where the windshield itself sometimes sits deeper between the A pillars to create this kind of pocket.