Take a car like the Mustang Boss 302: 444 hp, limited-slip rear differential, race-tuned suspension and 9.5-inch-wide, 19-inch Pirelli P Zero tires.

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The optionally available BRABUS limited-slip differential optimizes traction.

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Much like a mechanical limited-slip differential, torque vectoring subtly pulses the brake of the inside front wheel in a corner, directing more torque to the outside wheel, actually helping bend the car into a corner.

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Sorry, it's about to get all geeky in here: The longitudinally midmounted V8 transfers power to the limited-slip e-diff through a Koenigsegg-designed seven-speed gearbox, with a twin-disc dry clutch and an 11-disc wet clutch arranged sequentially, working cooperatively, rather like a dual-clutch automated manual transmission.

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Extras: Power sliding moonroof, rear sonar system, Bose Premium Audio System, Memory System, drivers seat power lumbar support, power tilt, aluminum alloy wheels with all season tires, sport-tuned suspension, viscous limited-slip differential, sport front fascia, Infiniti hard drive nav system, XM NavTraffic, Zagat survey restaurant reviews, DVD-video playback, Infiniti Voice Recognition.

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