Lexus will reveal the new "F" version of its RC coupe at the North American International Auto Show in Detroit on January 14.It's powered by a five-litre V8 capable of "well above 335kW, making it the most powerfull V8 road-going car” Lexus yet built.GALLERY: 2014 Lexus RC F coupeLexus RC F chief engineer Yukihiko Yaguchi said: “The form of each component is carefully designed to contribute to performance. Unique air outlets in the bonnet and rear section of the front wings contribute to optimum engine cooling and handling stability. They create a powerful look that immediately conveys the expectation of a dynamic driving experience.”'FUNCTIONAL BEAUTY'The RC F derives much of its design from the LFA supercar. The signature Lexus spindle grille dominates the front of the RC and certainly makes a statement with its assertive exterior styling kit that includes fins, air scoops, cooling ducts and numerous carbon-fibred components. Each element delivers what Lexus calls “functional beauty” to the overall design. An active rear wing automatically deploys at 80km/h and retracts when speed falls below 40km/h. There are three designs for the 10-spoked 19” alloy rims.The instrument panel is dominated by a central dial that adjusts to suit each of the car’s four driving modes. There’s a new steering-wheel design, high-backed seats with 'F' embossed on the head restraints - the seats deriving their styling, Lexus says, from athletic sportswear.Five styles of leather upholstery will be available, each with contrast stitching.