sentences:  The Contrast Edition is based on Sport trim (Sports seats, a leather multifunction steering wheel, Driver's Information System) for the UK market, with 17-inch '5-arm' design alloy wheels, exterior styling package (front spoiler lip, double-blade roof spoiler, side skirts, rear diffuser in gloss black, stainless steel tailpipe trims), roof contrast line, matching contrast on front spoiler lip, side skirts and double-blade roof spoiler.The A1 Contrast Edition went on sale in summer 2011.It is a version of the Audi A1 with a modified version of the Audi RS 3's 2.5 TFSI engine rated at at 2500–5300 rpm and , tailpipe located on the left flank in front of the rear wheel, six-speed manual transmission and quattro on-demand all-wheel drive from Audi TT RS, 255/30 low-profile tires, 19-inch alloy wheels with unique turbine design, ventilated carbon fiber-ceramic front brake discs with six-piston calipers, rear steel brake discs, Glacier White matt body colour, roof arch in high-gloss black, carbon fiber-reinforced polymer roof, four rings at the front of the car in solid aluminum, single-frame radiator grille with black honeycomb design, headlights with matted clasps with a red 'wing', air outlets in the hood, front fenders and doors and the rear side panels widened by in horizontal "blister" edges (from Audi Ur-quattro), trim strips on the sills are made of exposed CFRP, side mirrors in Audi R8 design, roof spoiler with a double wing, darkly toned rear lights, single closed rear diffuser, rear seat replaced by a crossbar, weight-optimized starter battery in the rear below the two storage compartments, removal of infotainment system and Audi MMI monitor and loudspeaker, CFRP bucket seats from Audi R8 GT, red four-point seat belts, dark gray interior, matt-finished CFRP at the walls in the rear section of the car, the tubes of the air vents and the "stern of the yacht" in the lower section of the center console; CFRP open-spoked sport steering wheel upholstered in leather, rocker switches on the center console replace switches on the control stalk and in the door panels, 3 additional instruments indicate the oil pressure, boost pressure and electrical system voltage; center console and seats covered in fine leather upholstery with tone-on-tone stitching, selector lever is made of aluminum, caps of the pedals and the surface of the footrest made of stainless steel, red loops replacing the handles on the doors, the glove box and the covers of the storage compartments.