I've described this style of roof as maybe related to the double bubble roofs that rise up over the front passenger plus driver, and theorized it may add entry and egress via raised upper portion.
However, this caption claims it's simply to keep the rain from washing on your head as you get in and out.
Wind and Automotive Design — 2
https://medium.com/@sooshin/wind-and...2-c2db7a20b34a
Quote:
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A roof of Toyota Prius. It is designed to prevent rain water from flowing towards the doors. The doors are higher than the roof, too, to stop rainwater from flowing over the doors.
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An odd detail, beats old fashion rain gutters I guess.