Are you sure that that STI is matte? It looks like an overexposed shot of a 2008 STI in Aspen White. Matte wouldn't show as much reflection along the doors, would it? For '08 the STI's came in Aspen White, which was non-metallic and non-pearl. For '09 they went back to Satin White Pearl.
JWA, that Ferrari and Slr are just the kind of colour what I´m looking for. Aspen white seems to be more popular in States than in europe, and flat or matt white or whatever I should call it would be so unique. Hmm.. maybe I should post some pic of my "working" room. Lime green walls with two wide white stripes round all the way. Looking for alernatives for sun burnt ardent red Elise and I think white does´t hide any of those nice shapes, just like pic of Gallardo that I saw somewhere.
Just add a deglossing agent to the clear coat and you have a matte paint job. Or order paint from a place like Hot Rod Flatz. or just wrap your gloss car in matte clear vinyl laminate. I can help with the last one of those.