Ford's Fastest Mustang Ever: A 325kph Muscle Car
Lawrence Ulrich
at 07:08 AM Jun 25 2012
Ford Mustang Shelby GT 500
Courtesy Ford Motor Co.
Cars // 

Detroit automakers have recently been locked in a competition straight out of the 1960s: a race to create the fastest and most powerful muscle car. This summer, Ford takes the lead with the 485-kilowatt Mustang Shelby GT 500. To break the 320kph mark, engineers departed from the muscle-car tradition of throwing a truck engine under the hood and calling it a day. Instead they redesigned the engine with lightweight materials, refined the car's aerodynamics, and installed driver-assistance systems that allow anyone to drive the Shelby as it's designed to be driven-aggressively.

484-KILOWATT ENGINE

The Shelby's 5.8-litre engine is the most powerful V8 in production. It's also 46 kilos lighter than its 5.4-litre predecessor. Engineers switched to an aluminum engine block, ditched the two-piece iron driveshaft in favor of a one-piece carbon-fibre unit, and replaced the heavy sleeves that guard the cylinder walls with a protective layer of atomised metal alloy.

DRAG RACING ASSIST

The key to quick off-the-line acceleration is to rev the engine as high as possible before engaging the clutch, without crossing the threshold where the tires will lose traction. The Shelby's launch control finds this sweet spot electronically. The driver presses a button to select an rpm limit, floors it, drops the clutch, and hangs on as the car begins its four-second sprint from 0 to 100 kph.

HIGH-SPEED STABILISERS

To keep the car glued to the road as it approaches 320 kph, designers added a front splitter, a horizontal scoop below the grille that directs air underneath the car. By creating an area of low pressure beneath the car (and consequently an area of higher pressure above the car), the Shelby generates 33 per cent more aerodynamic downforce than its predecessor.

ADJUSTABLE STEERING AND SUSPENSION

Computerised systems let drivers customise the Shelby's performance. With the car's electronic steering-assist system, drivers can choose Comfort mode to engage a hydraulic system that makes the steering soft and easy. Or they can select Sport mode, which tightens the steering for quick, precise turns. With the optional adjustable dampers, the driver can modify the suspension with the press of a button, stiffening it for flat cornering on smooth pavement or softening it for comfortable driving on rough roads.

THE 2013 FORD MUSTANG SHELBY GT 500

Price: From US$54,200
Engine: 5.9-litre V8
Max. power: 485 kW
0-100 time: 4 seconds
Top speed: 325 kph

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