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Revenge Design GTM-R is revealed at the Detroit auto show

File this under the eye-candy department at the Detroit Auto Show. An Indiana company named Revenge Designs Inc. unveiled at $145,000 supercar Monday that's fitted with a slew of General Motors parts, including the vaunted LS7 V8 rated at 505 hp and 470 lb-ft of torque.

SSC Tuatara: The new supercar from Shelby SuperCars

SSC Tuatara - the peaked backed lizard with super speedy DNA Shelby SuperCars has been the bane of the Bugatti Veyron’s existence almost since its inception, because it’s the American Muscle response to the Bugatti technological tour de force. And it keeps on coming, this time with the SSC Tuatara. Currently the Bugatti Veyron Super Sport holds the world speed record for a production car, having wrested that from the SSC Ultimate Aero.

Kia four-door sports sedan concept

Kia isn't giving much away about its Frankfurt-bound concept car, indeed it hasn't even released its name yet, referring to it as the 'four-door sports sedan concept.' The press release talks of it as 'signalling a distinctive new design direction' for the Korean brand, yet the now-familiar 'tiger-nose' grille and Optima-esque A-pillar/cant rail/C-pillar highlight are very much in evidence. "No matter from which perspective you look at it - this concept car is roaring with energy and ready for take-off," says Peter Schreyer, Kia Motors Chief Design Officer."I believe the car is a strong statement from Kia: we are ready to fast forward to an all new chapter." We'll bring you full details (and hopefully a name) from IAA next month. Photo gallery: Kia four-door sports sedan concept