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Is the Jaguar XFR-S really worth $17k more than the XFR? [w/poll]

Adding performance to a car is rarely cheap - whether you're looking to do it yourself or rely on the factory to do it for you. In the case of the new Jaguar XFR-S, the cost differential over an already-impressive (and somewhat expensive) XFR is a stout $16,800. Auto Express recently got a hold of both cars to see whether that price pays off on the track.
For that price, Jaguar gives the XFR-S an extra 40 horsepower and 41 pound-feet of torque - for a total of 550 hp and 502 lb-ft - to go with a stiffer suspension, beefed-up differential and, of course, meaner styling. We don't want to ruin the results of the AE video, but right off the bat, the host says that you can feel the extra power of the XFR-S, but that it's not a "night-and-day difference."
Scroll down to see what happens when two high-powered Jags go head-to-head on a track. And then be sure to let us know whether or not you think the added money is worth it for the XFR-S in the completely informal poll below.

Bloodhound SSC makes its speed-ready debut in London

Bloodhound SSC, the 1,000-mph land speed record contender, broke cover this week in Canary Wharf, London, in the heart of the Docklands financial district. "This is the best of British engineering meets the best of British banking," quipped Philip Dunne, MP, minister of state for defense procurement, which has provided backing for the team in terms of Army and Royal Air Force personnel and equipment. The team announced that Bloodhound will do its first test runs in Newquay, Cornwall, next spring before traveling to Hakskeen Pan in northwest South Africa in the fall. There, on October 15, 2016, it will make its first attempt on the land speed record, which currently stands at 763.035 miles per hour. That speed was set by Thrust SSC in the Black Rock desert on October 15, 1997 by Bloodhound's driver, Andy Green. Nineteen years later to the day, Green will be shooting for a speed over 800 mph. Over 8,000 people will come to Canary Wharf to see this extraordinary jet- and rocket-powered car over the next couple of days. This is the first-ever viewing of the machine in assembled form. The right-hand side is fully dressed in desert spec, complete with forged aluminum wheels and aerodynamics. The left-hand side is in 'naked' Newquay test spec, with panels removed for easy access and the whole thing riding on rubber tires that can run on tarmac. First impressions are of a big yet muscular car simply crammed with engines, jets, and rockets. The most recognizable thing, apart from the seven fire extinguishers, is the Jaguar AJ133 5.0-liter V8, lifted from an F-Type, which will run the fuel pumps that deliver over 211 gallons of high-test peroxide over the rocket motor's 20-second burn time. The EJ200 Typhoon military jet engine occupies the top floor and provides nine tons of thrust, and underneath is the single Nammo rocket motor providing an additional four tons. "When we go for 1,000 mph, we'll need another two rocket motors," says Mark Chapman, Bloodhound's chief engineer. "That total additional eight tons of thrust is what we'll need to get from 800 to 1,000 mph." He explains that the rear of the car will have to be redesigned to accommodate the two additional rocket motors, and the suspension might have to be adapted with longitudinal rear spring units like the fronts. There are still unknowns in the project, such as the area of vacuum that will follow the car several meters behind.

Automakers want to stop the EPA's fuel economy rules change, and why that's a shortsighted move

With a Trump Administration looming, the EPA moved quickly after the election to propose finalizing future fuel economy rules last week. The auto industry doesn't like that (surprise), and has started making moves to stop the EPA. Ford CEO Mark Fields said he wanted to lobby Trump to lower the standards, and now the Auto Alliance, a manufacturer group, is saying it will join the fight against cleaner cars. The Alliance represents 12 automakers: BMW, Fiat Chrysler, Ford, GM, Jaguar Land Rover, Mazda, Mercedes-Benz, Mitsubishi, Porsche, Toyota, VW, and Volvo. Gloria Bergquist, a spokesperson for the Alliance, told Automotive News that the "EPA's sudden and controversial move to propose auto regulations eight months early - even after Congress warned agencies about taking such steps while political appointees were packing their bags - calls out for congressional action to pause this rulemaking until a thoughtful policy review can occur." The EPA was going to consider public comments through April 2017, but then said it would move the deadline to the end of December. That means that it can finalize the rules before President Obama leaves office. The director of public affairs for the Consumer Federation of America, Jack Gillis, said on a conference call with reporters last week when the EPA originally announced its decision that it is unlikely that President Trump will be able to roll back these changes. Gillis also said on the same call that any attempt by the automakers to prevent these changes would be history repeating itself. "These are the same companies that fought airbags, and now promoting the fact that every car has multiple airbags," he said. "These are the same companies that fought the crash-test program, and now are promoting the crash-test ratings published by the government. So, it's clear that they're misperceiving the needs of the American consumer." There are more reasons the Allliance's pushback is flawed. Carol Lee Rawn, the transportation program director for Ceres, said on that call that the automotive industry is a global one, and many automakers are moving to global platforms to help them meet strict fuel economy rules around the world.