From the factory 4 weeks ago - bonnets being fitted, 29 top and 8 "innies" each side. I think this is a 3.7 Roadster.
Nigel
Now that's interesting, has anyone considered the position of the side louvres, Rosie's are to the rear and give her a dashing look, in the photo of the car you posted they are more forward. Position rather than the number may be more important
My original bonnets had the side louvres pretty far forward as in this picture of me (and my glam passenger

) at Prescott

compared to my new bonnet which I think had the original style louvres (ignoring the scoop bit) which fill out the side more.

I guess the later inward facing louvres are letting air in under the bonnet and if further back would just let air in against the lower bulkhead sides, which explains their more forward position.