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FCA inline-six rumored to be real, headed for Jeep Wagoneer

In September, Allpar reported that that clues being dropped at Fiat- Chrysler headquarters, in the carmaker's factories, and on engineer resumes pointed to the development of an inline six-cylinder engine. The site has just proclaimed the rumor is reality, writing that the straight-six, "turbocharged to meet or beat 5.7 Hemi power ratings, with a smoother torque curve, is on the way." The motor's first outing is expected to be either the next-generation Jeep Grand Cherokee, debuting perhaps next year, or the Jeep Wagoneer, debuting in 2020 or 2021. "Tornado" is the purported codename for the power plant said to be just under three liters in displacement, expanding the family begun with the Global Medium Engine 2.0-liter turbo codenamed Hurricane. Engine bay constraints and a long use horizon mean engineers won't simply add two more cylinders to the GME, however. Allpar says the brief is to keep the Tornado GME-T6 — the alphanumeric for "turbocharged six" — no more than three inches longer than the Tigershark 2.4-liter four-cylinder. That means "major design changes" that could include a space-saving head, more closely spaced cylinders, and no cylinder liners. An FCA division called Comau could be called on for its "SmartSpray" plasma lining technology. Allpar muses that the standard version of the engine for Chrysler, Dodge, Jeep, and Ram could get a single twin-scroll turbocharger. Performance trims for Alfa Romeo and Maserati could get different heads and maybe twin turbos, an SRT version might also get both those tweaks. History shows that the Italian versions would make changes to the block, as well. Even so, the Tornado would be less expensive than any Ferrari-supplied V6. A straight-six would put FCA in company with current adopters BMW and Mercedes-Benz, future users like Jaguar, and perhaps Aston Martin. The engine would span the widest range of use cases in the U.S. carmaker's portfolio, though. Potential applications include being a base engine for Ram trucks, serving double duty as a base engine and 5.7-liter Hemi replacement for the Dodge Charger and Challenger, working in the high-end Jeeps, and as a properly hot trim — with Ferrari-designed heads — in the luxury Italian sports cars. The Alfa Romeo Giulia begs for just such motivation to fill the gap between the 280-hp, $42,695 Ti Sport RWD and the 505-hp, $73,700 Giulia Quadrifoglio RWD. And a twin-turbo inline-six in a Maserati Alfieri would stack up nicely with the Germans.

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).

Maserati MC20 bringing twin-turbo V6 to September debut

There is a touch more information on the pieces going into the Maserati MC20, starting with intel to Car and Driver that the mid-engined coupe will launch with a "new twin-turbo V6 rumored to make more than 600 horsepower." Last time we heard about the flagship coupe created to return Maserati to the race track — and serve as a halo to burnish the entire lineup and drive more impressive global sales — the rumblings predicted a hybrid V6 making 600 hp or thereabouts. Mystery shrouds the engine's displacement, but the stillborn Alfa Romeo 8C and GTV were predicted to get a 3.0-liter twin-turbo V6. When Car magazine asked a Fiat Chrysler engineer if the MC20's engine would take that motor and enlarge it to 3.6 liters, the response was, "Displacement costs only pennies, but pays back big bucks in power and torque."  C/D writes that a hybrid version of the twin-turbo V6 comes later. Car predicts the electronics crank output to roughly 700 horsepower, which can't be a random number since Alfa Romeo touted the now-dead 8C as having "700+ combined horsepower." The naturally aspirated mill and its sequential turbochargers send power exclusively to the rear wheels through a Getrag eight-speed dual-clutch transmission. The hybrid models, perhaps earning the Trofeo name signifying top-tier grunt, go all-wheel drive with "e-modules" on the front axle. Previous scuttlebutt pegged the most intense trim as having three electric motors, which sounds like the setup found in other super coupes like the Acura NSX, placing one e-motor between the engine and transmission, the others on the front axle. The lineup eventually welcomes a battery-electric model, too, as well as a convertible. Rumor has a massaged version of the carbon tub from the Alfa Romeo 4C sitting between the front axle and engine, although longer and wider and sitting on a longer wheelbase.   With the novel coronavirus still upending everything, the MC20 debut has been moved from May to September. C/D figures a starting price of around $160,000 when the model goes on sale in the U.S. next year, after launching in Europe toward the end of 2020. That theoretical price might sound substantial, but it only adds $9,000 to the MSRP of the current GranTurismo Convertible. Car's figure comes in a little higher, at "less than GBP200,000," around $250,000 U.S. Related Video: