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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).

Jaguar spotted testing hardcore F-Type SVR

Jaguar keeps churning out more and more potent versions of the F-Type. And if these latest spy shots are anything to go by, it's got an even more powerful version in the works. Spotted undergoing testing near the Nurburgring is what appears to be a more hardcore variant of Coventry's shapely sports car. Beneath the usual swirly camouflage we can make out a reshaped front end with a deeper splitter and bigger air vents, along with a giant rear wing affixed to the tail atop an enlarged diffuser and quad exhaust tips. The wheels look like they're mounted to a lowered suspension and pack bigger carbon-ceramic brakes as well. Following the Range Rover Sport SVR, Jaguar is likely to label the new F-Type performance flagship as an SVR as well. Jaguar spokesman Richard Agnew confirmed to Autoblog that the R-S badge that previously adorned the most potent Jags is being phased out. That leaves the SVR badge as the most likely to appear on the back of this beast once it reaches production, although that much has yet to be confirmed: "As we stated when Jaguar Land Rover Special Operations was formed," says Agnew, "it is our intention to create a high-performance Jaguar SVR and we are currently evaluating what product to launch first." Nameplates aside, we're more interested in what this amped-up F-Type is packing underneath. We'll likely be looking at an even further enhanced version of the company's signature 5.0-liter supercharged V8 pumping out a good 600 horsepower, which would eclipse both the 550 hp in the F-Type R and the 575 in the Project 7 speedster – potentially driving all four wheels. We'll just have to sit tight to find out, but in the meantime you can scope out the spy shots in the gallery above for a closer look at what Jaguar's Special Vehicle Operations division has got in the cooker. Related Video:

Jaguar previews XF sedan ahead of New York debut

Jaguar is in the midst of an aggressive product expansion, with the new F-Type taking it back into sports-car territory, the upcoming F-Pace putting it in the crossover market for the first time and the XE renewing Jag's assault on the entry-level luxury-sedan segment. But it hasn't forgotten about its core models. The British automaker has a new flagship XJ under development, and Jag will showcase a brand-new XF at the New York Auto Show next month. But before it does, Jaguar has given us something to chew on with these teaser images: one showing the new sedan from above, and one showing the new cockpit. Now it may be hard discern much from that overhead view – which is not a typical teaser – but it's clear the new XF will feature more sharply creased body lines and a large panoramic sunroof. Meanwhile the interior looks like a modern update of the current model, borrowing some elements from the smaller XE. There's a wider infotainment display, the rotary knob for the transmission has moved toward the center, some (but not all) of the air vents appear to hide away when not in use, and there's a sportier steering wheel – though we do appear to be looking at the more performance-oriented S model. The XF, for those having trouble keeping track, is Jaguar's challenger to the likes of the Mercedes E-Class, BMW 5 Series, Audi A6 and Maserati Ghibli. It was introduced in 2007, and has been available (in certain markets anyway) in sedan and wagon forms, with engines ranging from a 2.0-liter turbo four with 240 horsepower all the way up to a 5.0-liter supercharged V8. With the New York show fast approaching, we won't have to wait much longer for a complete view of the new XF. But even before then, Jaguar promises to reveal the new XF in dramatic fashion in London: on March 24, it will drive the new sedan on two wires barely more than an inch thick suspended high above the river.