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The All-New 2018 Ford Fiesta ST arrives with the option of a Quaife ATB Differential. Previously only available on selected RS models, this is the first time Quaife’s signature ‘traction enhancer’ has been chosen by the Blue Oval to appear in their iconic ST vehicle line. Quaife is excited to announce that our signature ATB Differential is available in the highly anticipated 2018 Ford Fiesta ST. Previously chosen by Ford as official fitment in all three generations of Focus RS, its inclusion in the Fiesta ST brings the benefits of an LSD to an even greater audience. The Quaife Automatic Torque Biasing Differential is the natural fit for one of the most highly anticipated cars to appear in showrooms this year. Following a long line of award-winning fast Fiestas, the first of which was the legendary XR2 of the 1980’s, the new Fiesta ST is set to shake up the hot hatch market on its launch this spring, aided by the availability of a fully mechanical limited slip differential. The Quaife ATB helps to optimise front-end traction for enhanced cornering ability, in particular delivering more grip on the exit of corners. The mechanical system works to limit distribution of engine torque to a wheel with limited grip, reducing wheelspin, to fully exploit performance potential. Ford Performance engineers have integrated the Quaife ATB to work alongside the Fiesta ST’s enhanced Torque Vectoring Control system. The electronic aid improves road holding and reduces understeer by applying brake force to the inside front wheel when cornering. This, in turn, delivers optimal grip on dry surfaces and smoothness on wet surfaces. Leo Roeks, Ford Performance Director for Europe explains; ‘Performance car drivers will be familiar with the dreaded ‘one-wheel peel’, where a fast corner exit is hampered by an overload of torque to the inside wheel. We’ve fine-tuned the all-new Fiesta ST’s mechanical LSD option to work seamlessly with enhanced Torque Vectoring Control to deliver the best possible natural traction without ‘burning away’ excess torque with brake interventions’. Quaife’s manufacturing hub in Gillingham, Kent has been gearing up for the expected demand for the QDF63Z, the ATB designed specifically for the 2018 Fiesta ST. This production follows on from ATB differentials heading for fitment in Ford’s Focus RS Edition mega hatch. The Quaife ATB Differential Did you know we have over 400 different ATB differential applications? With over 50 years of design and development under our belts, we have designed and manufactured ATB differentials for a wide range of applications, from the smallest go-kart differentials to the largest commercial vehicle and military applications. The Quaife ATB is used around the world to provide better traction and faster cornering.