I don't know, generally I feel you gotta be pretty senseless to hydroplane to that degree. The X3, and I feel BMWs in general are pretty good at communicating thru the chassis, and I generally I feel that there's a point where the car just doesn't "feel right" and one naturally backs off, kind of like a "The tires/steering aren't really connected" sort of feeling. Sort of similar to black ice actually, the X3 is surprisingly adept at letting the driver know things aren't right.

I will admit that I tend to drive faster than average through the rain but am also well aware that physics cannot be overcome, and that my tires have 35% treadlife left. But I've never severely hydroplaned, closest I've come was 2 years ago when the pavement changed to a less porous section on I-85 near Gastonia NC in the middle of a curve, and my previous tires were nearly bald on the rear so it felt like someone yanked a chair from beneath me but it was of no real consequence.

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2014 Mazda 3 GT: Ø Consumption: (click for details)