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Jaguar lifts the tailgate on XFR-S Sportbrake

In the market for an amped-up Jaguar? Look for the letter R, adorning such performance models as the XFR and XJR sedans, the XKR coupe and convertible and the new F-Type R. But if it's bonkers performance you're after, you'll want to add the letter S into the mix as well. Jaguar uses the letters to connote its most hard-core performance variants like the two-door XKR-S and four-door XFR-S. And now it's applied them to the XF wagon as well, skipping the R treatment and going straight for the new XFR-S Sportbrake.
Leaked just the other day and headed for the Geneva Motor Show, Jaguar has now revealed its new power wagon in full. The XFR-S Sportbrake packs Coventry's ubiquitous 5.0-liter supercharged V8 engine boasting 542 horsepower and 502 pound-feet of torque. That's the same version that powers the XKR-S and XFR-S sedan (not to mention the F-Type R and XJR), and drives the rear wheels through an eight-speed automatic to rocket the estate to 60 in 4.6 seconds and on to an electronically limited top speed of 186 miles per hour.
That may be pretty quick, but doesn't quite stack up to the Mercedes-Benz E63 AMG S-Model 4Matic Estate whose 5.5-liter twin-turbo V8 offers up 577 hp and 590 lb-ft for a 3.6-second 0-60 time, or to the Audi RS6 Avant whose 4.0-liter twin-turbo V8 churns out 552 hp and 516 lb-ft for a 3.9-second 0-62 sprint. Though the Jaguar is only a little behind in output, it's a good second slower where it's measured. Granted that the Benz and the Audi are both all-wheel-drive where the Jaguar powers the rear only, but if four-wheel traction is how you get the power to the road, we wonder why Jaguar wouldn't fall in line. Particularly when the Jag's starting price in the UK (don't expect to see it imported here) is quoted at £82,495 - several grand more than the £76,985 RS6 but just shy of the £85,880 Mercedes gets for the E63 S-Model wagon in the UK (where the less potent 'base' version is also available as the cheapest in the bunch at £75,885).

Automotive Grade Linux will be the backbone of your connected car

Creating a backend for a secure, reliable, and expandable infotainment system is costly and time consuming. The Linux Foundation, a non-profit organization, has set out to promote and advance the Linux operating system in commercial products. Automotive Grade Linux, or AGL, is a group within the Foundation that seeks to apply a Linux backend to a number of automotive applications in a variety of vehicles from various suppliers and manufacturers. AGL's goal is to create a common, unifying framework that allows developers and manufacturers to easily implement applications across platforms. Currently, the focus is on infotainment systems, but AGL has plans for instrument clusters, heads-up displays, and eventually active safety software. At CES, a display from Panasonic showed a completely digital and customizable dashboard that allows information and apps to be moved from the gauge cluster to the infotainment screen and back, all through the use of gesture and touch controls. Although the organization has been around for five years, it's really only been in the past three that the group has been working hand in hand with automakers and suppliers. The first two OEMs to participate, Toyota and Jaguar Land Rover, have since been joined by Mazda, Suzuki, Ford, and, as of this week, Daimler. The latter is important as until now most of AGL's partner's have been based in Japan or the US. Other partners include suppliers Denso, Renesas, Continental, Qualcomm, and Intel. AGL want's to supply roughly 80 percent of the backend, allowing partners to then finish and refine the Linux system for each individual application. Think of how the Android operating system is refined and customized for individual smartphones from Samsung, LG, and Motorola. While the final product looks different, developers can have an application that will work across all AGL systems. Because it is open source, anyone can use and develop for AGL. You can even go onto the group's website and download a copy right now. There is also a software development kit available that helps facilitate app creation on the platform. Vehicle development cycles take roughly five years, so there currently are no cars that run an AGL backbone available for consumers. AGL Executive Director Dan Cauchy says products should be hitting the market later this year, with even more coming in 2018. Right now, the industry is relatively fragmented when it comes to infotainment and related systems.

Top horsepower-per-dollar cars in 2017

Bang for the buck. That quasi-scientific statistic is bandied about by motor heads everywhere from classrooms to barrooms, though the truth of the matter is that it's exceedingly complex to measure. A fair performance-per-dollar index would include something like cross-referencing MSRP (Manufacturers Suggested Retail Price) with point-to-point times on a track or driving route, which is obviously hard to do comprehensively. But, for the sheer joy of talking about cars and playing with a big spreadsheet, there's always the horsepower-per-dollar index, which is more straightforward, albeit hilariously flawed. There are vagaries even with this simple formula, of course: MSRP for vehicles can change at a moment's notice, to say nothing of the bottom-line shifting that happens with local deals or showroom negotiation. For this list we're running with the straight MSRP wherever possible, and as recently reported as we can get it. All the vehicles on this list are 2017 models, and all trims are reported where the lowest price and differing power levels intersect. Some choices were made for personal preference and some for sanity, avoiding things like all 48 trim levels of the Ford Transit, all with the same horsepower). If this list were a simple top ten, or even a top fifty, you'd be bored to tears with all the red, white and blue that is represented. Following perfectly with conventional wisdom, American cars really do lead the world where hp/$ is concerned. So, for the sake of variety (and the sheer joy of seeing a minivan 'win' one round of this thing) I've sorted out some top five and bottom five lists for broad power categories. Let's dive in. Less Than 100 Horsepower Okay, okay, this is hardly a category we'll grant you. But we've often tried to click off all the sub-100-hp cars on sale in the US, and making this list gave us an excuse. It also illustrates that none of these smallish vehicles bring cheap horsepower to the table - for that you'll need a motorcycle. The segment-leading Chevy Spark (above) asks just over $139 for each hp, and that Smart Fortwo Electric Drive has hp on sale for about the same price as its very distant family cousin, the Mercedes-Benz SL65 AMG (insert your favorite Smart joke here... we know you want to).