On Sun, 10 Jan 2016 17:51:35 +0000, newshound wrote:

And I am pretty sure most cars manage with about half a dozen. Typically
10, 13, and 15 rather than 11 and 14.

Good ol' Citroen. 11 and 14 everywhere, rather than 10, 13, 15. Still, at
least they used nice standard 8mm M5s.