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Jaguar XJ facelift suggests that if it ain't broke...

Jaguar is preparing what looks to be a very modest upgrade for its long-serving XJ, now heading into its fifth year in production. The fullsize luxury sedan's changes are so limited it seems like a stretch to even refer to these changes as a proper update. New front and rear lights represent the big changes, although the XJ's front grille looks to get a tiny bit of tweaking. Beyond that, though, we can't see too much changing for Jag's flagship luxury car. That said, there could be some tweaks below the sheetmetal and within the cabin that these images don't really show. Take a look at our gallery of spy photos, at the top of the page, and let us know what you think Jag is up to with this particular XJ.

Jaguar planning additional models, engines

Jaguar is in the midst of a product offensive, rolling out the new XE and XF sedans while preparing the upcoming F-Pace crossover. But it's not about to sit on its leather-upholstered laurels. According to Motor Trend, the British automaker has a slew of projects in the cooker. For starters, there will reportedly be more versions of the flexible new Ingenium engine family. The lineup is being launched with gasoline and diesel four-cylinder engines, but is tipped to breed smaller three-cylinder versions as well to slot into a variety of Jaguar and Land Rover models. More intriguing, however, is the suggestion that Coventry is planning to replace its long-serving 3.0-liter supercharged V6 with a new straight six engine that could go turbocharged – which would make some sense out of the 35t moniker being worn by the supercharged XE. Of course Jaguar is going to need some new vehicles to slot those engines into, and MT suggests there are several possibilities under consideration (if not actual current development). The XE could breed wagon, coupe and convertible versions, as well as an SVR variant to take on the the BMW M4, Cadillac ATS-V et al. If the F-Pace proves a success, it could lead to larger and smaller crossovers in the future. The next XK is tipped to grow larger and go up-market. There, it would compete with the likes of the Bentley Continental GT, Rolls-Royce Wraith and Mercedes S-Class Coupe, while steering clear of the smaller F-Type. Related Video:

Jaguar working on windows that open when you touch them

Jaguar is working on side windows that will whir up and down not with a push of a button, but with a touch of the glass itself. According to Jaguar Design Director Ian Callum, "For instance, if you want to pull the windows down, you touch a certain area of the glass and you can actually just drop them down." Callum would go on to caution, "These things are all a work in progress at the moment," before pausing and saying, "That's coming." When we asked when we might see such technology deployed in a production car, Callum, who spoke with Autoblog at the Detroit Auto Show on Monday, said, "I don't know when, but we certainly know how to do it." Callum was less forthcoming about how the technology functions, saying, "Oh, I can't tell you (laughs)... it's proximity, mainly." It's not clear whether traditional physical switches mounted on the doors would still be required with such a system. The designer then went on to discuss Jaguar's innovation in proximity-based switchgear – the automaker has already been using the technology for its interior overhead lighting controls and glovebox release. When we asked about any safety concerns that touch-control windows might generate, Callum said, "I think if it's a very specific area, there's absolutely no ambiguity about what you're trying to do – it's fine." Callum knows a thing or two about the need for absolute specificity in this area – when Jaguar introduced its XF sedan with proximity switchgear, it found passengers were accidentally opening their gloveboxes with their knees, which prompted a quick redesign. "It's a whole new genre of disciplines that we have to think about – what is safe," he said. Design/Style Jaguar Technology Luxury 2015 Detroit Auto Show