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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).

Some 2012-13 Chevy Volts may not have enough battery coolant

The 2012 and 2013 model year Chevrolet Volt extended-range plug-in vehicle may have a battery glitch caused by low coolant levels. No recall has been issued and General Motors is taking care of the issue at no cost to drivers. Some of the affected Volts may have lower-than-advisable coolant levels because of some pesky air pockets in the car's cooling circuit. When the coolant levels get too low, the charging system for the battery powering the car's onboard generator (i.e. the Rechargeable Energy Storage System, or the RESS) may be shut down, turning one's Volt into a run-of-the-mill gas-powered car, and a pricey one at that. The Car Connection says GM is advising owners of the '12 and '13 Volts to contact their local Chevy dealer for a free fix. GM representatives didn't immediately respond to a request for comment from AutoblogGreen for more details. We believe this is a separate issue than the one that brought 8,000 Volts back to the dealers for a battery coolant fix, what GM called a "voluntary customer satisfaction effort," a few years ago. General Motors sold 23,094 Chevy Volts last year after selling 23,461 Volts in 2012, so that fix-it list may get fairly lengthy. Check out a GM-Volt.com user thread related to this issue here. *UPDATE: Chevrolet spokesman Randy Fox confirmed in an e-mail to AutoblogGreen that the company issued a service bulletin to dealers that they may need to top off coolant levels on certain Volts because of the issue, and that the vehicle will "return to normal charging operation" once that's done.

Chevrolet Bolt EV Concept foreshadows an affordable, 200-mile EV future [w/videos]

Confirming numerous reports and rumors, Chevrolet introduced the Bolt EV Concept, "a vision" of a 200-mile EV with an entry price of around $30,000. Those lofty promises ride atop a funky crossover that made its global debut at the 2015 Detroit Auto Show. The orange five door features a spacious greenhouse, complemented by a glass roof and thin D-pillar. A narrow grille and slim LED headlights crown a high fascia that leaves little ahead of its front axle. It's a similar story in back, as General Motors' design boss Ed Welburn sought to limit overhangs and maintain the Bolt's small footprint. "Form and function have never meshed so well together," Welburn said. "No compromises were made when it came to aesthetics and the elements that contribute to the Bolt EV concept's range, resulting in a unique proportion that's sleek, efficient and obviously a Chevrolet." The cabin is not unlike current Chevrolet compacts, with the MyLink touchscreen and a detached instrument cluster dominating the sparse dash. Unlike cars like the Sonic, which features a similar design for its instrument cluster, A Volt-like display is found over the steering column. "The Bolt EV concept is a game-changing electric vehicle designed for attainability, not exclusivity," CEO Mary Barra said. "Chevrolet believes electrification is a pillar of future transportation and needs to be affordable for a wider segment of customers." Take a look at both the official gallery of Bolt images, as well as our live shots. And then scroll on down for more comments from GM brass, in the official press release. Chevrolet Bolt EV Concept Signals Brand's EV Strategy Affordable, long-range concept builds on brand's electrification leadership 2015-01-12 DETROIT – Chevrolet today made a significant statement on its commitment to electrification with the introduction of the Bolt EV concept – a vision for an affordable, long-range all-electric vehicle designed to offer more than 200 miles of range starting around $30,000. "The Bolt EV concept is a game-changing electric vehicle designed for attainability, not exclusivity," said General Motors CEO Mary Barra. "Chevrolet believes electrification is a pillar of future transportation and needs to be affordable for a wider segment of customers." Leveraging the electrification prowess established by Volt and Spark EV, the Bolt EV concept is designed to offer long-range performance in all 50 states and many global markets.