I saw the SP23 with the brown seats, and not fond of it. The seat color just doesn't 'work' with the black/carbon scheme. With the black seats it'd be okay.
Bun warmers are nice to have, but the auto headlights and wipers are just more stuff to go wrong. And I think the SP23 badges look a little out of place.
Speaking of badges, did anyone notice that the font for the 2.3 badges is nothing like the italic "3" on the Mazda3 badge... You'd think they'd use the same font for consistency! if I had a way, I'd order imported mazda2 and mazda3 badges and make my own 2.3 out of them...