To achieve the increase in power, the Golf R 400 features a newly developed turbocharger with a higher maximum charge pressure and reinforced crankcase. A water-cooled exhaust gas feed to the turbocharger integrated in the cylinder head helps to reduce full-load fuel consumption, while variable valve control with dual camshaft adjustment improves economy and performance.
\nAt 1,420 kg, the Golf R 400 weighs the same as the standard Golf R, but its appearance has been substantially altered. The body is 20 mm wider on each side, with flared wheelarches that are reminiscent of those on the 1988 Rallye Golf G60. These arches, like most of the body, are painted in \u2018Silver Flake\u2019 metallic, and contrast with the gloss black roof and carbon door mirror caps. New sill extensions seamlessly bridge the gap between the widened arches. Filling those arches are 19-inch alloy wheels on an increased offset. A development of the Golf R\u2019s standard \u2018Cadiz\u2019 wheels, these are highly modified, with high-gloss back inserts that act as air vanes, helping to cool the reinforced braking system. The tyres are 235\/35 R19s.<\/p>\n
At the front, the bumper has been completely redesigned to take into account the greater cooling requirements of the R 400. A carbon fibre splitter and aerodynamic \u2018wing element\u2019 help to push air towards the honeycomb mesh of the grille \u2013 one of many aspects influenced by motorsport. The \u2018R\u2019 badge on the gloss black radiator grille sits on a \u2018Lemon Yellow\u2019 background, while the horizontal stripe across the grille (which, like the chrome strip on the Golf R, continues into the bi-xenon headlights) is also \u2018Lemon Yellow\u2019.
\nThe redesigned rear bumper includes vents on each side, and the Golf R\u2019s four tailpipes have been replaced with two centrally mounted items, like those on the 2002 Golf R32. These 110 mm diameter items are 200 mm apart, and point slightly upwards, displaying a honeycomb mesh. A black double spoiler with LED brake lights atop the tailgate finishes the look.<\/p>\n