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Maserati GranCabrio revealed in high-output Trofeo trim

As has been the tradition with Maserati over the past couple of decades, now that the four-seat GT coupe has launched, it's time for the drop-top version. And this latest convertible adopts the same name as its predecessor: GranCabrio. It is, in almost every respect, the same car as the GranTurismo, but with a fabric roof and a bit more weight. Said roof is available in five colors: a navy blue, dark red, black, grey and "greige." It is indeed fabric in order to fold more compactly and allow for cargo space with the top folded, though it will still take up a bit of trunk space when retracted. It also folds quickly at just 14 seconds, and it will come back up in 16. Operation of the top can be done at speeds up to 31 mph. To keep occupants comfy in all temperatures with the top down, the front seats have air vents in the seat backs to blow air onto the neck. Optionally available is a fold-open wind blocker that fits behind the front seats, though it can't be used with rear occupants. The soft top does bring some extra weight, around 220 pounds compared to the equivalent coupe. Maserati didn't specify exactly what contributes to the gain – whether it's more just top components or if some of it comes from chassis reinforcements (both seem likely). Interestingly, the extra weight actually gives the GranCabrio slightly better balance than the GranCoupe. The drop-top's front and rear weight distribution is 51/49 to the coupe's 52/48. Maserati is only offering the GranCabrio in the top-spec Trofeo internal-combustion trim for now. That includes the twin-turbo 3.0-liter V6 making 542 horsepower and 479 pound-feet of torque, eight-speed automatic transmission and all-wheel drive. The weight does ever so slightly blunt acceleration, dropping it by 0.1 second to 3.6 compared to the GranTurismo Trofeo. The same staggered 20-inch front and 21-inch rear wheels and Brembo brakes carry over from the coupe, too. And while the Trofeo is the only version for now, Maserati notes that the chassis remains designed for internal combustion and electric power, so an all-electric Folgore and more entry-level Modena gas-powered models will likely be added later. Maserati did not give a specific time for when the GranCabrio will hit dealers, but it should be sometime this year. Pricing is also a mystery, but should carry a premium over the GranTurismo coupe. Related video:

Maserati switching to in-house twin-turbo V6 and turbo four

Automotive News has been able to put some output figures to the two primary engines that will power Maserati's renaissance. Last year the Italian luxury brand sent notice that it would terminate its deal to with Ferrari to use the Maranello-sourced F160 3.0-liter twin-turbo V6 and F154 3.8-liter twin-turbo V8. As new Maserati models appear and current models are overhauled, the brand will begin installing either Maserati's own 3.0-liter twin-turbo V6, or an FCA-sourced 2.0-liter turbocharged four-cylinder. The V6 will greet the world from the middle of the MC20 supercar poised for debut in September, assuming nothing goes worse with the world than it already has. Rumor from Mopar Insiders and Allpar forums is that Maserati began building its V6 based on Alfa Romeo's 690T V6. Alfa Romeo puts the 690T in the Stelvio and Giulia Quadrifoglio, the engine's development having started seven years ago with Ferrari's F154 V8 as its heart. Tuned for speed, peak output could reach 542 horsepower. After making its home in the racy coupe, the V6 will also serve a new midsize Maserati crossover coming next year, as well as the next GranTurismo coupe and GranCabrio convertible. In the crossover, power is apparently limited to no more than 523 horses. In Maserati's new V6, one piece of technology that permits such high output and emissions friendliness is turbulent jet ignition (TJI). German supplier Mahle has been developing the technology for at least 10 years, and put it to use in Ferrari's Formula 1 engine about five years ago, after which Japan's Super GT manufacturers picked it up. Instead of a spark plug igniting fuel directly in the combustion chamber, TJI places the spark plug and an injector nozzle at the top of a "jet ignition pre-chamber assembly." The injector shoots a mist of gasoline into the pre-chamber, the spark plug fires, and the force of ignition in the pre-chamber sprays the combustion through tiny holes at the bottom of the pre-chamber into the cylinder as the piston rises. Mahle says the shorter burn and improved combustion spread means cleaner-burning gas engines that emit fewer emissions.   AN says that the "new V-6 engine will be 'electrified' in some form." It's not clear if that means all versions of the V6 will get some sort of hybrid assistance, or if — as had been thought — there will be a non-hybrid unit.

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