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"   2009 DETROIT AUTO SHOW PREVIEW: \u2022 BUICK: 2010 Buick LaCrosse  \u2022 CADILLAC: 2010 Cadillac SRX  \u2022 FORD: 2010 Ford Shelby GT500  \u2022 CHEVY: 2010 Chevrolet Equinox   We dug the Jaguar XF right from the get-go. Swoon-inducing styling, dramatic and inviting interior, and power, brakes and handling in full concert with Jaguar&amp;#039;s sporting-yet-luxurious brand heritage. That&amp;#039;s why we awarded it a Popular Mechanics Automotive Excellence Award last year.  But as good as the XF is, under the hood there was something lacking\u2014an engine capable of taking on the 500 hp monster-sedans from Mercedes-Benz&amp;#039;s AMG and BMW&amp;#039;s M divisions. Cars like the E63 AMG and M5 are the sport sedan gold standards. Even Cadillac has a monster sedan of its own\u2014the Cadillac 556 hp CTS-V. To combat these four-door supercars, Jaguar has created the XFR.   The bodywork is graced with minor aero tweaks and discreet badging, but the essence of the R-model XF is under the hood. The regular XF gets a new direct injection 5-liter V8 sporting 385 hp and 380 lb-ft of torque, up 23 percent in power and 12 percent in torque from last year&amp;#039;s port-injected 4.2. Better yet\u2014the supercharged version of this new engine delivers 510 hp and 461 lb-ft. of twist, with a torque curve as flat as Kansas. That&amp;#039;s good enough to propel the XFR to 60 mph in a brief 4.7 seconds. The direct injection, increased compression ratio and lowered internal friction hold fuel consumption to an EPA combined 22.4 mpg. The normally aspirated engine delivers 24.5 mpg.   The 4.2 V8 will continue to be available, but with these stout 5.0-liter motors on the option sheet, we say why bother with that old 4.2? \u2014Mike Allen   CONTINUED&amp;amp;gt;&amp;amp;gt;&amp;amp;gt; 2010 Buick LaCrosse   RELATED STORIES \u2022 TEST DRIVE: 2009 Jaguar XF V6 Diesel  \u2022 PLUS: PM Picks the Top Cars for &amp;#039;09  \u2022 DETROIT 2009: Complete News and Analysis   "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.popularmechanics.com/cars/a12644/4298634/>