Among an avalanche of Mopar concepts, the Dodge Challenger GT AWD concept is one of the company's headline acts at the 2015 SEMA show in Las Vegas.

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Under the bonnet there's a 5.7-litre Hemi V8 fitted with Scat Pack 3 performance kit. The upgrades, which include CNC-ported cylinder headers, hi-flow manifolds and catalysts, and new gaskets, raises output from 280kW/556Nm to 340kW/616Nm.

Drive is sent to terra firma via an eight-speed automatic and all-wheel drive setup. Neither Mopar nor Dodge has provided performance figures for the GT AWD concept.

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The Challenger GT AWD concept rides on lowered suspension and 20-inch alloy wheels all around, which are housed under flared front and rear fenders.

Other distinguishing features on the exterior include a two-tone black and silver colour scheme with orange highlights, a Mopar graphics package, quad exhaust tips, Mopar badging, and a body kit that incorporates a new front splitter and rear spoiler.

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On the inside, the concept car features a flat-bottomed steering wheel, new Challenger-branded side sills, and Katzkin leather for the side panels, seats and centre console.