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Submit your questions for Autoblog Podcast #329 LIVE!

We're set to record Autoblog Podcast #329 tonight, and you can drop us your questions and comments via our Q&A module below. Subscribe to the Autoblog Podcast in iTunes if you haven't already done so, and if you want to take it all in live, tune in to our UStream (audio only) channel at 10:00 PM Eastern tonight.
Discussion Topics for Autoblog Podcast Episode #329
Subcompact sales slump, yet again

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.

Maserati confirms mystery concept, Zegna edition QP for Geneva

Debate ensued last week around the Autoblog offices when we first heard rumors that Maserati was bringing a new sports car concept to the Geneva Motor Show this year. Could there be any truth to the rumors? Did the timing make any sense? Does Maserati even need a two-door halo car to help it move examples of the new Ghibli, Quattroporte and upcoming Levante?
Well, we still don't have any official answer, but Maserati has indeed confirmed a new concept car to debut this week at the Swiss expo. The Modenese automaker hasn't indicated what form the concept will take, but assuming it's not doing another sedan or crossover, and unless it's planning a wagon concept like Touring's Bellagio Fastback or StudioTorino's Cinqueporte (both based on the previous Quattroporte), we feel it's more likely than not that we'll be looking at a two-door (be it a coupe, convertible or something in between).
Of course, we also don't know at this point just what size and segment Maserati is pursuing with this concept car (initial rumors had it going after the Jaguar F-Type) or for that matter whether it will presage a production version to follow or simply stand as a design study. But Maserati doesn't typically do many of the latter: the Kubang concepts of 2011 and 2003 previewed the Levante (albeit several years in advance), and the Birdcage was really more of a Pininfarina project, despite the Trident on the nose. With the exception of a couple production-based show cars (which themselves previewed production versions to follow), those are pretty much the only concepts Maserati has done in recent memory.