Ferrari TR: approx 22 mm long diam 0.75 mm, I guess mine is a bit undersized but I had to cut, simply I unliked bigger.
Updatez: finally after dozen pass of primer-putty-primer-sand etc. I had a decent grey surface, sanded with 2000 grit, followed by white primer (sanded+polished under runny water), than I sprayed stright from the can the Bright Orange (a couple of mist coats) followed by 3 coats of yellow (TS16? ever straight from the can). Now I have to wait for curing an so polish it. Next steps carbon on fenders and clearcoat (not sure may be only matt clear on fenders, I like the thiny appeal of yellow w/out clear). Nosecone would be carbonized, except the front white line. Primers wasn't sanded and polished in the interior's panel so I'll see a different texture, polished out, rough inside

. Last edit: I just LOVE multilayer painting with different colors, I start to se this tip with my 360CS, now I have a reach yellow that on reflection allow to see something of the orange
I done also two little radiators folding stainless steel PE parts (not easy, better german silver, but inox have a unique and fantastic unoxided texture) and seaming they: also seamed a couple of pipes to fix cooling hoses:
ciao!
gio