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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).

Bentley unveils 202-mph Continental GT Speed Convertible

That purple haze all in your eyes is the 2013 Bentley GT Speed Convertible. The cynical view is, "Bah, take a GT Speed and cut the top off. There. Pass the salt, please...". But when you're Bentley, more than 90 years old, and charging these kinds of ducats, there's no reason to take the cynic's shortcut. So of course the GT Speed Convertible gets all of the Speed-family accoutrements: matrix radiator grille hiding a twin-turbocharged, 6.0-liter W12 with 616 horsepower and 590 pound-feet of torque, eight-speed ZF transmission enabling 15 percent better fuel economy, beefier lowered suspension, larger rifled exhaust tips, inlet manifold finished in black crackle and a Mulliner Driving Specification cabin.
Among the many refinements added to the convertible, though, are neck warmers in the seats, the 21-inch wheels unique to this car, class-leading stiffness - admittedly, it's a very small class, but its torsional rigidity of 22,500 Nm/degree is only 500 Nm below that of the Lamborghini Gallardo coupe. The stiffening required to achieve that number will undoubtedly have something to do with the 485-pound weight gain over the GT Speed Coupe.
Still, when the GT Speed Convertible weighs 5,500 pounds, what's a few hundred between friends? More importantly, the weight doesn't scuttle performance: 0-60 comes in 4.1 seconds, a tenth shy of the coupe. The gap stretches as you approach The Ton, the GT Speed Convertible needing just 9.7 seconds to get there, the coupe just nine seconds. Trust us, though, everyone will be too busy blasting along to notice. Everyone will want to pack light, however, because the Speed Convertible loses 3.5 cubic feet of trunk space. It remains the fastest four-seat convertible in the world with a 202-mph top speed.

The Windsor Castle Concours d'Elegance in pictures, courtesy of Bentley

Bentley went to the Windsor Castle Concours of Elegance as the main sponsor and showed off six of its best among the gathering of "60 of the finest motor cars in the world," including the 4¼-liter Bentley 'Embiricos' Special built for a Greek shipping magnate and gentleman racer in the 1930s.
Even better, for us at least, is that when Bentley decided to capture the moment it took pictures of most of the metal on the lawn, not just the Bentleys. Thanks to that, we have a high-res gallery that's home to rarities like the Vauxhall 30-98 Type OE Boattail Wensum Tourer, beauties like the Bugatti Type 57S Atalante, long-tail Ford GT40, Maserati Tipo 60 Birdcage, Aston Martin DB4GT Zagato, a sinister Ferrari 250 GTO and the even more sinister Rolls-Royce Phantom Aerodynamic Coupe, among others. All you need to do now is click and enjoy.