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Sharing the show floor in Detroit with the new Jaguar XFR is the updated XKR. Available as either a coupe or a convertible, the new 510-hp all-aluminum Jaguar rips from 0-60 mph in an impressive 4.6-seconds (manufacture supplied data for the coupe). The engine in the updated XKR is the same direct-injection, supercharged 5.0-liter V-8 seen in the XFR. The sole transmission choice is a six-speed automatic with paddle shifters and based on our past experience with this setup, you won't miss a manual or dual-clutch option. There is also a new electronically controlled limited-slip differential and adaptive dampening, both fitted as standard. Click the above link to the XFR if you'd like more info on the engine, differential, and dampers.

It's no secret that we like the Jaguar XF at Automobile Magazine. The keys to our XF Supercharged Four-Seasons test car are rarely sitting around and we keep piling on the miles. We even named the newest Jaguar sedan a 2009 All-Star. But, like you, we've seen the spy photos and knew the English brand had something hotter coming. That hotter something is the XFR, released here at the Detroit show.

A year ago, after editor-in-chief Jean Jennings traveled to Arizona for the world debut drive of the XF, Jaguar's new sport sedan, she reported that she was "ready to drive the XF home to Michigan." Her wish has now been partially fulfilled, as we have taken delivery of an XF Supercharged at our Ann Arbor office. For its $64,475 starting price, the big cat comes loaded to the whiskers, riding on twenty-inch wheels and featuring a 440-watt Bowers & Wilkins stereo that has drawn early praise. We added adaptive cruise control-the only available option aside from special paint-to bring the total to $66,675.

Automobile Magazine's annual All-Stars test inevitably features a few predictable outcomes. For instance, I fully expected the Chevy Corvette ZR1 to rip my face off, and indeed I am now faceless. And I wasn't even driving it at the time. I was in the Jaguar XF, following executive editor Joe DeMatio, who floored the throttle and nearly triggered the Jag's air bags with the concussive boom of the ZR1's exhaust.

Just a beautiful, composed, powerful, lush car - the proverbial velvet fist. Power delivery is immediate as are the brakes, which are very nicely modulated.