The sediment grains bouncing along the bed get pushed up the rearward-facing slope (stoss) and then avalanche down the other side (lee).

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The Vanquish's proportions aren't quite as radical and cab-rearward as those of the One-77, but it's still pretty much a heart attack on sight.

WSJ: 2014 Aston Martin Vanquish Review: No, Mr. Bond, I Expect You to

The volumes and cab-rearward profile of the BRZ are classically sporty (the Scion will vary only in the front and rear clips and lighting instruments), but there's not a lot of surface excitement here.

WSJ: 2013 Subaru BRZ Review: It's Thinker Than You Fast It Is | Rumble Seat by Dan Neil