Besides pedestrian can potentially get lifted high in the air, the massive speed of impact may cause hood to flip over and block driver's view after the impact. This usually happened to design/style with bonnet meets top of kidney grill (e.g. E60, E90/92), where the hood latch was said to be the weakest link. But then, the new X3 (F25) bonnet line may follow the similar design judging from
latest spyshot. It's a bit of marketing decision IMHO.
While the design of bonnet line across the hood was nothing new from BMW design history, if there is an option, I'd preferred E39, E46, and E70 X5 hood style where the hood continues on kidney grill.
Bonnet line across the hood looked pretty sleek (e.g. F01 7er, F10 5er, E89 Z4, E84 X1, E52 Z8, and E31 8-Series to name a few).
e.g. E31
