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This classic Jaguar XJ has a 720-hp ungentlemanly secret

Forget Tawny Kitaen. If you want to make a Jaguar XJ rock, just do what this guy did: stuff a heavily modified and turbocharged General Motors V8 under the hood, and take it to the track.
The video calls this Series 1 XJ a sleeper, but with its open exhaust and obvious turbo whistle, the once-gentlemanly sedan is anything but. The owner says that the engine is GM LQ9 V8 that has been stroked to 402 cubic inches putting out around 720 horsepower with 12 pounds of boost (in standard form, this 6.0-liter V8 was used in the second-gen Cadillac Escalade). Check out the video below to see what that kind of power does for this classic Jaguar in the eighth-mile.

Jaguar XE SV Project 8 now available for Nurburgring rides

There are a number of ways to experience the Nurburgring Nordschleife, including being driven around by a professional driver. Jaguar runs its own program that does just such a thing called the Race Taxi program. It just became even more appealing because Jaguar has added the XE SV Project 8 as one of the available cars. In case you had forgotten, it's a special car for the program because it currently holds the record for fastest production sedan at the track. Even without a record to its fame, the Jaguar XE SV Project 8 is special for other reasons. It's the most powerful production Jaguar with 592 horsepower. That engine can propel it to 60 mph in a claimed 3.3 seconds. Most of the car's exterior is completely unique to the car. It's a rare machine, too, with only 300 sold. If you want to go for a ride, well first you have to get to the Nurburgring. But once you're there, hand Jaguar 199 euros, or about $227 at current exchange rates, and a driver will take you for a lap of the track. The company brags that you'll experience speeds of over 155 mph, and hit 1.8g in the steeply banked Karussell corner. You only get the one lap, but at least you know it will be a roughly 7 1/2 -minute thrill ride. If you can't get into the Project 8, you'll still be able to ride along in the 575-horsepower F-Type SVR or XJR575. Related Video:

Jaguar XFR-S is motor-porn on a mountain road

The 2014 Jaguar XFR-S might have only been good enough to take the runner-up spot in our Editor's Choice top five debuts at the LA Auto Show, but we'd be hard-pressed to find a car with a more exhilarating exhaust note. As proof of this, Jaguar released a video showing the XFR-S tearing up a windy, European mountain road in close to a minute of hardcore driving footage.
The big blue cat has the same great exhaust note of the XKR-S, and the driver puts all of the car's 550 horsepower to work demonstrating the handling - and drifting - abilities of the new XFR-S. If there's any disappointment to be had, it's the fact that you have to jump to the 30-second mark of the video for any of the action to start.
Scroll down to watch the video, and be sure your speakers are turned all the way up.