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Jaguar XE promises to net 'over 75 mpg,' just not for us [w/video]

With around a month away from its world debut on September 8, Jaguar continues to issue a constant drip of updates about its upcoming XE compact luxury sedan that's aiming to take on the BMW 3 Series and Audi A4. Where the company's last bit of info focused on the car's suspension setup, this time Jag's putting the spotlight on the new model's modular platform and making some big promises about it, too. How big? Try over 75 miles per gallon big.
That's the headline figure that Jaguar is claiming for its new sedan, but it's keeping mum on just what powertrain will realize that figure. Furthermore, that result is on the European test cycle, which is more lenient than America's EPA testing regime. In any case, when the XE hits the road, Jag says it will be the most efficient vehicle from the company, ever.
That's thanks in no small part to the aluminum-intensive monocoque chassis underpinning the sedan. It's constructed from a new grade of the lightweight metal called RC 5754 that uses a high portion of recycled material. "The Jaguar XE body uses over 75-percent aluminum content, which far exceeds any other car in its class. This gives us a body structure with unrivaled low weight: it's light but also immensely strong with extremely high levels of torsional stiffness," said Dr. Mark White, Jaguar Chief Technical Specialist; Body Complete.

Jaguar working on 700-hp, 200-mph hybrid F-Type?

After first driving the 2014 Jaguar F-Type in Spain this spring, we came away mighty impressed. Of course, if you had to pin us down for a top three wish list of what improvements we'd like to see, we'd probably hit you with something like: 1) Less weight. 2) Less weight and 3) Less weight. Oh, and if we're feeling presumptuous, maybe some additional transmission choices.
Despite leveraging aluminum for the body and chassis, this Jaguar is still a bit of a fat cat compared to its rival models from Porsche. We never felt like it was lacking for power in any of its three supercharged trims, least of them the 495-horsepower V8 S, which is a genuine madman. We knew the variants would come, though - a quick look at the rest of Jag's lineup provides all the evidence you need of that. And so we're not surprised to see word of a hyper-powered F-Type on the horizon, an R-S version. What is surprising, however, is a new report that put its motivation at over 700 horsepower and its top speed at 200+ mph. Us? We're just hoping the latter figure comes at least partially as a result of a hardcore diet.
This F-Type R-S news comes according to the rumormongers at AutoExpress, who expect the high-power Brit to come in coupe form, at least initially. We still haven't seen the debut of the fixed-head F, but plenty of spy shots suggest its arrival is imminent. Wildly, AE posits that Jag won't look for more displacement to gain power, it will instead radically downsize by using a 1.6-liter turbo- and supercharged four-cylinder and an array of electric motors. If that sounds familiar, that's because AE suggests the high-tech powertrain will be scavenged from the defunct C-X75 supercar program (interestingly, earlier reports suggested this combination would only deliver about 500 horsepower).

2013 Jaguar XF 3.0 Supercharged

Generally speaking, I don't get too upset about the growing need to replace displacement in modern cars. Sure, there are exceptions (don't you touch my 6.2-liter AMG V8), but honestly, the industry's new forced induction powertrains are all lovely, and their gains in fuel economy - when they actually make good on them - can make up for the ever-so-slight losses in performance or driving character.
But I'm having a hard time keeping my chin up with this Jaguar XF. For the 2013 model year, Jaguar has killed off the naturally aspirated 5.0-liter V8 and fitted a supercharged 3.0-liter V6 with an eight-speed automatic in its place (and even offers a turbocharged four-cylinder engine below that). That all sounds perfectly well and good, but a week behind the wheel of this British Racing Green sedan just left me missing that V8. And then some.
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