Infiniti G Coupe Sketches – Click above for high-res image

For the past two years, Infiniti has been growing its presence in Pebble Beach. The week-long auto extravaganza in August plays host to a number of automaker events, but recently, Infiniti has been taking center stage. For 2010, Nissan's premium channel isn't letting up, bringing two M-based models to the party in Pebble, both of which are slated for production.

We don't have specifics on either model, but in addition to the image above, our sources within Infiniti tell us that the new coupe variants will be extensions of its current lineup, lending credence to recent rumors of an M coupe likely to be based off Infiniti's current line of G vehicles.

More interestingly, we've been told that both models will "extend Infiniti into an area we haven't been before" and that one of those models will be more "performance oriented." If that means we can expect some kind of powertrain similar to the Essence Concept that debuted at the Geneva Motor Show last year – a twin-turbo, direct injected V6 putting out over 450 horsepower – consider our interest incredibly piqued.

Both models are set to go on sale in October or November of this year, with the M35 Hybrid arriving sometime toward the end of 2011.

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