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FCA's Pentastar V6 gets more power, efficiency for 2016

Already a vital member of FCA's powertrain lineup, the 3.6-liter Pentastar V6 is receiving major efficiency improvements for 2016. Thanks to a massive amount of new tech attached to the mill, fuel economy is up six percent, and torque below 3,000 rpm jumps nearly 15 percent. The updates arrive first in the 2016 Jeep Grand Cherokee, but they should proliferate to other models eventually. At least in the Grand Cherokee, the tweaks push power up five horsepower to 295 ponies. FCA's engineers went through the Pentastar from top to bottom to eke out as much efficiency as possible. For example, there's now a two-speed variable-valve lift system that can run in low- or high-lift modes. This upgrade is responsible for 2.7-percent better economy, the company claims. A new intake manifold with longer runners and updated variable-valve times also helps boost the torque output. Further improvements come from pushing the compression ratio to 11.3:1, from 10.2:1 before. Perhaps most impressive is that despite all of the innovations, the latest Pentastar actually weighs four pounds less than the current version. Beyond the Pentastar improvements, all of the FCA US gasoline engines, except for the Viper's 8.4-liter V10, will be E15-compatible for 2016. The company says that it wants to be ready for the higher ethanol content fuel's greater use in the near future.

Mazda and Fiat finalize deal for Alfa roadster, next-gen MX-5 Miata

Although a little bit later than expected, Mazda and Fiat have signed a final agreement that will bring a next-generation MX-5 Miata to the Japanese automaker and a new roadster to Alfa Romeo. When the proposed arrangement was announced back in May, the two automakers had hoped to seal the deal last year, but it doesn't appear that the production timeline for these cars has slipped any, with both expected to start rolling off assembly lines in 2015.
Other than a shared chassis with a rear-wheel-drive layout, it sounds like the two cars are still planned to be distinct in their own ways from their styling right down to their engines. Mazda will produce both cars at a plant in Hiroshima, Japan, but it isn't clear what role each automaker will play in the cars' developmental process. The big question, of course, is what clever portmanteau name we can come up with, like Toyobaru. Mazda Romeo is the easy choice, but Alfazda might roll off the tongue a little better.
Scroll down for a brief press release from both automakers.

Almost 70 percent of FCA-PSA Groupe models to ride on two PSA platforms

With the merger between PSA Groupe and Fiat Chrysler having been officially announced this week, we still don't know where everything will settle once the process concludes. We covered the catalog of models herded by the combined company's 12 brands, all of which will remain for now. Profound changes must be afoot somewhere, though, else there'd be no reason for the tie-up. Automotive News has a report on one of the big moves, writing that "more than two-thirds of [PSA-FCA] production would be concentrated on just two platforms." Around 2.6 million cars built by the combined company would sit on PSA's Common Modular Platform, also known as the EMP1, for B-segment city cars, entry-level and mid-range C-segment sedans, and compact crossovers. Three million vehicles would ride on the EMP2 architecture intended for C- and D-segment cars and higher-end crossovers. Those figures account for around 5.6 of the 8.7 million vehicles the combined company expects to sell annually. AN didn't mention the Giorgio platform that's already spread throughout the FCA kingdom to support numerous current and future offerings like the next-gen Jeep Grand Cherokee, but did write that "larger Jeep models will continue to use FCA underpinnings." The body-on-frame chassis' under Ram trucks and the Jeep Wrangler and Gladiator should hold pat. We'll wait for word on the fate of the Compact U.S. Wide platform carrying the Chrysler Voyager and Pacifica and Jeep Cherokee. Dodge products with questionable futures are anyone's guess; we've heard the Dodge Durango, still built on a Mercedes-derived platform it shares with the current Grand Cherokee, could go body-on-frame for the next generation, or die and have the Giorgio-based, three-row Jeep Grand Cherokee take its place. More mystery comes with the long-lived LA and LD platforms in the big sedan and coupe trio Chrysler and Dodge still milk quite successfully. And if there were ever a time for the Dodge Journey – last reported as a Giorgio recipient – to modernize or die, we don't know when that time is. Although FCA platforms have been designed with alternative powertrains in mind, AN says the PSA Groupe architectures "are more modern than FCA's equivalent platforms." After PSA acquired GM's Opel/Vauxhall division, the French company didn't waste time moving the Anglo-German products to in-house platforms, helping to put the formerly money-losing operations into the black in just 18 months.