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Jaguar envisions future without V8 engines

With tighter emissions and fuel economy regulations looming, Jaguar may have to do more than make a small, fuel-efficient hatchback to lower its model range's consumption figures - it also might give up its venerable V8 power, Drive reports. But not anytime soon, says Steven de Ploey, Jaguar's product and marketing director, who recognizes that the V8 can be replaced only by something that offers the same, or better, performance. But he has a word of caution: "We are not wedded to V8s."
In the meantime, de Ploey says there are other ways to reduce emissions. One of the first steps Jaguar could take is to shift away from the use of superchargers, which aren't as good as turbochargers at maintaining efficiency and making power. But he adds that supercharging still is "at the heart of Jaguar's performance proposition," and that the company has addressed the current downsizing trend by "replacing our naturally aspirated V8 with a 3.0-liter supercharged V6."
Consider one of de Ploey's comments on the cancelled C-X75 supercar (pictured) for some clue about Jaguar's future: "Some of the stuff we have already exploited to the extreme in the C-X75 is the kind of thinking for us and is an essential test bed to see how we could evolve from today to something that is sustainable in the future."

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.

2014 Jaguar XFR-S super sedan is 550-HP worth of cool

The 2014 Jaguar XFR-S was considered last year, teased last week and now has been totally let loose. The most powerful sedan the company has ever made and the newest addition to its line of R-S performance cars - following the XKR-S - and we'll be getting even fewer of them than we thought. 200 had been the rumored allotment for the US, but the official word now is that we'll see just 100.
Each XFR-S will use the same 5.0-liter supercharged V8 that powers the XKR-S, meaning a 40-horsepower and 41-pound-foot bump over the XFR for 550 hp and 502 lb-ft in total. Shifting through the adaptive, eight-speed ZF transmission gets it from standstill to 60 mph in 4.4 seconds, but for all that, it gets the same gas mileage as the XFR, aided by its stop/start system, and so doesn't get hit with a gas guzzler tax.
Other XKR-S bits have made the jump, including an upgraded suspension front and rear, the near-straight pipes for the cracking exhaust note we drank up like ambrosia and twenty-inch, six-spoke lightweight wheels that are an inch wider than on the XFR. Lateral stiffness is up 30 percent, the electronic systems have been recalibrated to handle the extra oomph, throttle response has been sharpened and can be made even sharper by going into Dynamic Mode.