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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).

Hellephant 1,000-horsepower Mopar crate engine priced, is available to order

The folks at Fiat Chrysler's Mopar division unveiled its meanest road-going V8 ever at last year's SEMA show. It makes 1,000 horsepower, and it's called the Hellephant in honor of the second-generation Charger's 426 "Elephant" V8, and because it has a honking big supercharger on top like the modern Hellcat. What we didn't know was the price, but now order books are open, and it's priced at $29,995. That's about $10,000 more than the currently available Hellcat engine, which makes 707 horsepower. You'll also probably want to buy the available kit that comes with all the computers, wiring, sensors and throttle to run it, and that's an extra $2,265. Putting things further into perspective, you can actually buy an entire new Dodge Challenger SXT V6 for $29,340. You'll also still need to add other accessories if you want things like air conditioning, which Mopar is also happy to sell you. What we're saying is, this is a lot of money just for an engine. But on the other hand, this is a roughly plug-and-play engine with Bugatti Veyron power for the price of a V6 Challenger, so that's pretty awesome. And you can put it into anything you have the skills or money to put it in. Plus, it should be able to make more power with higher-octane fuel. We can't wait to see the swaps and builds.

California Highway Patrol powers up with Charger Pursuits

Residents of California, you'll want to adjust your rear-view mirrors and remain vigilant for the menacing maw of the Dodge Charger. The California Highway Patrol (CHP) ordered 580 Dodge Charger Pursuit cars to start replacing the organization's oldest vehicles. According to the CHP's director of communications, Fran Clader, these old cars are patrol versions of the Ford Crown Victoria, Ford Explorer and Dodge Charger. The cars will be delivered over the next two years with the majority equipped with Fiat Chrysler's 3.6-liter V6 engine. The unit makes 292 horsepower in the Charger and is found in everything from the Jeep Wrangler to the Chrysler 200. There will be a handful of Chargers with the 5.7-liter V8 found in the Charger R/T, but Dodge and Clader said they will just be used for training. Bick Pratt, head of FCA US government sales and operations, said the order represents a move back toward four-door police cars. "The CHP is ordering our Charger Pursuit vehicle to reintroduce the sedan into their patrol vehicle fleet," Pratt said. "That's important to us because it reflects a shift back to sedans by a progressive agency like the CHP." Chargers may show up in local law enforcement fleets. Pratt said departments will have the opportunity to also order Charger Pursuits through the CHP's contract. So wherever you are in California, if you see that famous crosshair grille in your rear-view mirror, be ready to pull over. Related video: