Infiniti Q60 Concept coupe fashions another bid for the luxury elite

Nothing explains the luxury car world quite like that old Little Richard lyric: Keep a knockin' but you can't come in. Inside live the brands, mostly European, whose names are a global shorthand for success and wealth. On the doorstep stand the strivers from Detroit and Japan, who haven't quite got a foot in, despite a few billion dollars worth of knocking.

Today, Infiniti knocks again with this: the Q60 Concept, a near-preview of a car it will build in 2016, part of a global reboot meant to elevate Nissan's long-suffering luxury experiment into a major player. While there's a new engine under the hood — a 3-liter V-6 with twin turbos and a 7-speed automatic — Infiniti withheld other details that would differentiate it from the styrofoam in a clay mock-up. What matters as far as the  Detroit auto show goes is the Q60's exterior and interior look.