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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 F-Type Project 7 arrives Stateside for $135k*

There are a great many things we love about the Jaguar F-Type, but one of them is that, whatever price point you're looking at, there's an F-Type for you. (Well, not any price point... this is a Jag we're talking about, but pricing varies greatly.) Got $65k to spend? That'll get you into a base F-Type V6 coupe, and you'll likely be happy for it. Eighty grand will get you into an F-Type V6 S, $90k into a V8 S roadster, and a cool hundred grand will get you the top-of-the-line F-Type R coupe. But what if you want to spend more than that? What if you've got more like $165,000 in your pocket and it's burning a hole when it should be burning rubber?
Well we've got good news for you, friend, because that's exactly how much the exclusive F-Type Project 7 will set you back. Making its US debut during Monterey car week, Jaguar has announced that the most exclusive version of its two-seat sports car - revealed in production spec just recently at the Goodwood Festival of Speed - will cost $165k in the US (plus the standard $925 delivery charge). That's roughly the price of an F-Type R and a base F-Type V6.
For all that scratch, you get an open-top roadster with 575 horsepower on tap - more than any production road car Jaguar has ever made before, and that includes the XJ220 and ultra-rare XJR-15 supercars. The most potent version yet of Jaguar's ubiquitous and long-serving 5.0-liter supercharged V8 is enough to send Project 7 to 60 in 3.8 seconds and on to an electronically limited top speed of 186 miles per hour.

Jaguar working on 600-hp F-Type SVR

Thinking about buying a new Jaguar F-Type? You've got a number of supercharged engine options to choose from... and soon you'll have one more. According to Motor Trend, Jaguar and its Special Vehicle Operations unit are working on a new SVR version of the F-Type, and it's tipped to pack 600 or more horsepower. That's more than anything Jaguar (or for that matter Land Rover) has offered for public consumption to date, but follows a delineated progression of output. As it is, the 5.0-liter supercharged V8 offered at launch in the F-Type convertible was already churning out 500 metric horsepower. Then came the F-Type R coupe that bumped output up to 550, followed by the limited-edition Project 7 roadster with 575. Topping 600 would only follow naturally, then, but would give the F-Type a broad range of outputs, starting at 335 hp and nearly doubling once it hits the top. It would also handsomely eclipse the Mercedes-AMG GT S (503 hp) and Porsche 911 Turbo S (552 hp), rival the Aston Martin Vantage GT12 (592 hp), and give even the new Audi R8 V10 Plus (610 hp) a run for its money. The bigger question is what form the SVR model will take, and with what other equipment. Coupe or convertible, rear-drive or all-wheel drive, automatic or manual... it's too early to say at this point. But we can probably expect much of the equipment from Project 7 – active diff, carbon-ceramic brakes... the works – to reappear in the SVR as well.