4 years ago

Speed Zar Services Presents;
2011 Lamborghini Aventador 691HP
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Safeguarded by a red cover, the starter button awaits. With a satanic rumble, the 6.5-liter V-12 behind us erupts, seemingly with the first crank of the starter. In all it does, the Aventador’s new V-12 is a remarkably responsive engine—with just the slightest tap of the throttle, revs rise and fall with F1 quickness. Switch it off, and the suddenness of the silence is disorienting. Even if the displacement is the same, this is not the Murciélago engine. Indeed, Lamborghini increased the bore by seven millimeters while shortening stroke by 12.6, which could allow this engine to rev even higher than the 8500-rpm redline of the Murci mill. (Read our in-depth look at the Aventador’s engine here.) Peak output is 691 hp at 8250 rpm and 509 lb-ft of torque at 5500, increases of 59 hp and 22 lb-ft over the Murciélago’s V-12. Smoother, but still with plenty of bark, it’s lighter and mounted lower in an aluminum frame connected to the carbon-fiber monocoque.

Surprisingly, Lambo’s new engine is not direct injected. The Italian excuse is that it already is 20 percent more efficient than its predecessor, although we’re expecting EPA ratings of 10 mpg in the city and 14 on the highway, only 1 mpg better than the Murciélago in the city and the same for long hauls. Of course, summoning all 691 hp will push that figure deep into single-digit range.

Pulling the paddle on the right shifts the car into first. The single-clutch, seven-speed automated manual Graziano gearbox is lighter and more compact than a dual-clutch unit, which helped Lamborghini meet its 3472-pound (dry) weight target for the Aventador. (Sadly, there will be no manual transmission offered.) With all fluids aboard, the Aventador should come in somewhere between 3700 and 3800 pounds, a few hundred pounds lighter than the Murciélago. Like many modern sports cars, the Aventador’s top gear exists to maximize fuel economy during high-speed cruising; the car actually reaches its 217-mph top speed in sixth.

You’ll want to take a moment—and a few deep breaths—before flooring the throttle. The driver hardly has time to gasp before the Aventador hits 60 mph, which we estimate will take only 2.8 seconds. The 100-mph mark should pass in around 6.5 seconds and the quarter-mile will take less than 11. The rate of acceleration hardly seems to slow below 200 mph, and thanks to the hyperquick gear changes, there is zero perceptible lull during upshifts. The Aventador is equipped with a high-end audio system, but we prefer to listen to the conversation between our right foot and the engine. The V-12 makes a powerful low-frequency roar at lower engine speeds, which becomes a thunderstorm over 3500 rpm. Stay on the throttle and, beyond 5000 rpm, the Lambo V-12 sounds like the apocalypse.

The higher the speed, the more torque the car apportions to the Haldex clutch at the front wheels. This is said to help stabilize the front end at speed. It certainly contributes to incredible stability in hard cornering. Damping and steering response can be sharpened with the (Audi-esque) “Drive Select” button on the center console, which offers three choices: Strada, Sport, and Corsa—Road, Sport (surprise!), and Track. Even with stability control on, the sharp Corsa mode allows some oversteer before intervening.

The car delivers up to 60 percent of the engine’s torque to the front end, a transition the driver will note is accompanied by the sensation of the front end getting lighter and a loss of steering feel. Compared to the Murciélago, the steering requires a little less effort, but is more precise. The driver does notice some nervous feedback through the wheel, but that’s to be expected in a car with steering this quick and tight.

STARTING AT $393,695
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