150bhp+ litre-class nakeds — superbike engines in upright street bikes.
Hyper nakeds are litre-class supersport engines wedged into bare chassis with upright bars. 150-200bhp, no fairing, electronics doing most of the keeping-you-alive work. The Tuono V4, Super Duke 1390, S 1000 R, Streetfighter V4, and MT-10 are the current state of the art.
Honest assessment: the road case for these bikes is thin. They're too fast for almost any US road on which you'd keep your licence, and the value they offer over a normal modern naked is largely "I can do bigger numbers". On a track, they're spectacular. On a backroad, they're a Tuono V4 going 35% of its capability while a Street Triple 765 RS goes 80% of its capability and gets there about as quickly.
None of which means people shouldn't buy them. They sell because they're aspirational and ridiculous. That is a perfectly good reason to own a motorcycle.
999cc inline four
1350cc 75° V-twin
1077cc V4 (RSV4 derived)
1103cc Desmosedici Stradale V4
998cc supercharged inline four
998cc CP4 cross-plane four
1160cc inline triple (new platform)
999cc inline four (FireBlade SP-2 derived)
999cc inline four (GSX-S1000 platform)
Top-spec inline-four hypernaked
All-new platform shared with Panigale V2
998cc V-twin — original litre super-naked, replaced by V4 Tuono 2011
749-909cc inline-four — Tamburini Italian super-naked
898cc parallel-twin (BMW F800-derived) — only 3 model years, cult bike