The rumours were true: GM's premium subsidiary Buick has whipped the covers off a tasty two-door the night before its public unveilling at the Detroit Auto Show, revealing a long, low and wide 2+2 coupe powered by a twin-turbo V6.
And unlike most modern Buicks, it takes all of its power (298kW, to be exact) to the correct axle - the rear.
Buick doesn't say, but industry gossip suggests the Avista concept is built atop the GM Alpha platform, a longitudinally-enginged RWD/AWD architecture that underpins the Chevrolet Camaro, Cadillac CTS and Cadillac ATS.
Given the Avista's 2811mm wheelbase is just 1mm longer than the Camaro, that theory appears to hold water.
And with 20-inch alloys and a 1601mm front and 1598mm rear track, the Avista Concept's stance certainly echoes the Camaro's aggressive posture.
Buick only says the engine has 400hp (298kW), two turbochargers and six cylinders in a V arrangement, but looking at other Alpha-platform cars it's likely to be a detuned version of the CTS' 310kW turbocharged 3.6 litre LF3 V6.
What will power the production version (if one does indeed eventuate) is anyone's guess, but Buick's position in the GM hierarchy as a technological innovator will likely see a turbocharged powerplant of some description employed.
A V8 isn't out of the question either: the flagship Cadillac CTS-V makes use of a supercharged 6.2 litre with a whopping 480kW. Watch this space.
Though GM's Australian arm Holden is as cagey as always about what's on the horizon, a production version of the Buick Avista would likely slot in well alongside the marque's future lineup of European-sourced vehicles - and provide it with a foil to rival the just-arrived Ford Mustang (below).
Indeed, it could also provide the basis for the rumoured production version of the Opel Monza concept, which bears a few similarities to the Buick Avista show car.
With more Opel products like the Astra destined for Australia, the business case for a RWD Holden Coupe would be strengthened if it were already available in Europe.
It would also cast into doubt rumours that Holden's next RWD sports car (which is locked in, though nobody outside of Holden knows what it is) will be a right-hook version of the Chevrolet Camaro or Corvette.
So are you looking at the next-generation Holden Monaro? Maybe, but right now the Magic 8-Ball is refusing to provide a definite answer on that. We'll let you know.
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