Tag Archives: DCT

Read This: Is it time for American carmakers to give up on dual-clutch transmissions? [w/poll]

By Damon Lowney

Dual-clutch transmissions in plant

Filed under:

Last week, in the midst of Detroit’s first days seeking relief in Chapter 9 of the bankruptcy code, Automotive News contributor Larry P. Vellequette penned an editorial suggesting that American car companies raise the white flag on dual clutch transmissions and give up on trying to persuade Americans to buy cars fitted with them. Why? Because, Vellequette says, like CVT transmissions, they “just don’t sound right or feel right to American drivers.” (Note: In the article, it’s not clear if Vellequette is arguing against wet-clutch and dry-clutch DCTs or just dry-clutch DCTs, which is what Ford and Chrysler use.) The article goes on to state that Ford and Chrysler have experimented with DCTs and that both consumers and the automotive press haven’t exactly given them glowing reviews, despite their quicker shifts and increased fuel efficiency potential compared to torque-converter automatic transmissions.

Autoblog staffers who weighed in on the relevance of DCTs in American cars generally disagreed with the blanket nature of Vellequette’s statement that they don’t sound or feel right, but admit that their lack of refinement compared to traditional automatics can be an issue for consumers. That’s particularly true in workaday cars like the Ford Focus and Dodge Dart, both of which have come in for criticism in reviews and owner surveys. From where we sit, the higher-performance orientation of such transmissions doesn’t always meld as well with the marching orders of everyday commuters (particularly if drivers haven’t been educated as to the transmission’s benefits and tradeoffs), and in models not fitted with paddle shifters, it’s particularly hard for drivers to use a DCT to its best advantage.

Finally, we also note that DCT tuning is very much an evolving science. For instance, Autoblog editors who objected to dual-clutch tuning in the Dart have more recently found the technology agreeable in the Fiat 500L. Practice makes perfect – or at least more acceptable.

What do you think? Vote in our poll below, then have your say in Comments.

View Poll

Is it time for American carmakers to give up on dual-clutch transmissions? [w/poll] originally appeared on Autoblog on Mon, 22 Jul 2013 19:31:00 EST. Please see our terms for use of feeds.

Permalink | Email this | Comments

…read more

Source: FULL ARTICLE at Autoblog

Breaking: Mercedes-Benz GLA Concept crossover leaked ahead of Shanghai debut

By John Neff

Filed under:

With just a few days left before the start of the Shanghai Motor Show, images of the Mercedes-Benz GLA Concept compact crossover have emerged online. The little ‘ute is based on the small A-Class hatchback, and though it shares an identical wheelbase, is larger in every other dimension.

Looking like a rough-and-tumble five-door hatchback on the tippy toes of its 20-inch wheels, the GLA is most certainly destined for production in a toned down form that will borrow many bits and pieces from other cars based on this platform like the aforementioned A-Class and the CLA-Class sedan. Carscoop reports that the production version of the GLA will be revealed at the Frankfurt Motor Show in September of this year, with sales to the public starting in 2014.

Since it’s based on the A-Class, we expect that the production GLA-Class will be powered by your choice of Mercedes’ 2.0-liter turbocharged inline four-cylinder engine and a diesel or two, and will offer transmissions that include the company’s seven-speed DCT and perhaps a six-speed manual (at least in Europe). If the GLA follows the same path as the two cars before it, expect a GLA45 AMG producing over 300 horsepower, as well. As for what powers the GLA Concept, that just might remain a mystery until the vehicle is officially revealed in China.

Stay tuned to Autoblog this Friday night and Saturday for our live coverage of the Shanghai Motor Show.

Mercedes-Benz GLA Concept crossover leaked ahead of Shanghai debut originally appeared on Autoblog on Wed, 17 Apr 2013 09:59:00 EST. Please see our terms for use of feeds.

Permalink | Email this | Comments

From: http://feeds.autoblog.com/~r/weblogsinc/autoblog/~3/2RO5xXKX9jg/

Detroit: 2014 BMW Z4 offers minor refinements with a majorly orange wrapper

By Seyth Miersma

Filed under: , , , ,

The redesigned BMW Z4 was rolled out onto the show floor at the Detroit Auto Show, with the example in question being an sDrive35is variant, with the just-less-than-screaming Hyper Orange Package. The exclusive colorway includes the metallic orange paintjob, as well as trim-specific seats, stitching and accents for the interior. More importantly, the 35is driveline means that you’ll find a high-output version of the turbocharged 3.0-liter N54 engine, here outputting 335 horsepower and 332 pound-feet of torque, and a 7-speed DCT gearbox.

Two slightly less ferociously powered versions of the Z4 will be available for the new model year, too (both familiar). The Z4 sDrive35i is good for 300 hp and 300 lb-ft, while the still-potent sDrive28i features a 2.0-liter turbo four-cylinder making 240 hp and 260 lb-ft.

You’ll fine some more details about the 2014 BMW Z4 in our original news story about the model here, or by scrolling down to read the full BMW press release.

Continue reading 2014 BMW Z4 offers minor refinements with a majorly orange wrapper

2014 BMW Z4 offers minor refinements with a majorly orange wrapper originally appeared on Autoblog on Mon, 14 Jan 2013 19:01:00 EST. Please see our terms for use of feeds.

Permalink | Email this | Comments

Source: FULL ARTICLE at Autoblog