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Sam Abuelsamid

Ypsilanti, MI - http://sam.abuelsamid.com

After 22 years of working as an engineer for car companies and automotive suppliers I now spend my days writing about cars and alternative fuels.

All Grown Up: Audi celebrates 20th birthday of TDI

by Sam Abuelsamid (RSS feed) on Nov 23rd, 2009 at 4:31PM

Audi A3 TDI – Click above for high-res image gallery

As Audi begins to roll out the A3 TDI to its U.S. dealers in the coming weeks and the diesel version of the Q7 takes an ever larger share of sales, it's time to celebrate. This Fall marks the 20th anniversary of the introduction of the first ever TDI engine. TDI, for the uninitiated, stands for turbocharged-direct-injection, and refers to modern diesel engines from the Volkswagen group. Today's TDI technology has evolved from the 20 year-old 2.5-liter five-cylinder in the Audi 100.

Back then, the first TDI engines retained distributor type injector pumps, although the fuel was sprayed directly into the combustion chambers rather than a pre-chamber. Later, the company used something called Pumpe Düse – pump-injectors – for fuel delivery. This design integrated the high pressure pump and injector for each cylinder. These days, TDI uses common rail injection where a single pump pressurizes a single fuel rail that feeds all of the injectors. Regardless of the injector type, TDI has gone a long way towards improving the power output and reducing emissions of diesel engines. Audi and Volkswagen have built over five million TDI powerplants and remain committed to the technology. Congratulations on the double-decade milestone, guys.

Gallery: Review: Audi A3 TDI

Officially Official: BMW unveils all-new 5 Series sedan

by Sam Abuelsamid (RSS feed) on Nov 23rd, 2009 at 2:12PM

2011 BMW 5 Series - Click above for high-res image gallery

The 5 Series is an important model for BMW, particularly in North America where it's the brand's second best seller behind the 3 Series. Heading into 2010, BMW has expanded its mid-size line with the new Gran Turismo body style already on sale. However, the volume leader for the 5 Series is the four-door sedan, which officially debuts today. The 2011 model transitions to a new platform architecture shared with the latest 7 Series as well as the upcoming Rolls-Royce Ghost. The 5 Series sedan gets a four-inch shorter wheelbase than its siblings, but at 116.9 inches, it still stretches well past its competition. The new Mercedes-Benz E-Class runs a mere 113.1 inches between its axles and the Cadillac CTS is 113.4 inches.

From a technical perspective, the new 5 Series picks up much of what can be found in the 7 Series and the Gran Turismo. Read on after the jump to learn more about it.

UPDATE: Nine videos added and more images uploaded into gallery.

Gallery: 2011 BMW 5 Series sedan

[Source: BMW]

New Hyundai 2.4-liter GDI four-cylinder makes 200 hp in 2011 Sonata

by Sam Abuelsamid (RSS feed) on Nov 23rd, 2009 at 1:01PM

Hyundai 2.4L Theta-II GDI - Click above for high res image gallery

When Hyundai's all new Sonata goes on sale early in 2010, it will arrive in U.S. showrooms with only one available engine, a thoroughly revamped version of the 2.4-liter Theta-II four cylinder. The new engine is Hyundai's first production powerplant with gasoline direct injection, but John Juriga, director of powertrains at the Hyundai-Kia Technical Center (HATCI), promised it wouldn't be the last. Juriga told a media briefing at HATCI recently that Hyundai was planning to roll out GDI across its lineup in the coming years.

For now though we have to be content with the new Sonata engine, which is now more powerful than the engine it replaces with 200 hp and 186 pound-feet of torque. The basic internal dimensions are carried over from the 2010 port-injected edition, with bore and stroke of 88 mm x 97 mm for a total displacement of 2,359 cc. The new fuel delivery system has allowed the engineering team to bump the compression ratio from 10.5:1 up to 11.3:1. Like other direct injected engines, the charge cooling effect of injecting the fuel in into the high temperature compressed aid allows the elevated compression without the risk of knock. Read on to learn more about the first GDI Hyundai engine.

Gallery: Hyundai 2.4L Theta-II GDI

[Source: Hyundai]

Hyundai bumps the output of Genesis V8 by 10hp for 2010

by Sam Abuelsamid (RSS feed) on Nov 23rd, 2009 at 8:59AM

Even with two completely redesigned models debuting in the coming weeks, Hyundai won't leave its carryover models alone for the 2010 model year. Engineers have tweaked the 4.6-liter V8 in the Genesis sedan and extracted an extra ten horsepower from the Tau to bring peak output up to 385 hp at 6,500 rpm.

Hyundai Technical Center powertrain director John Juriga acknowledged that the performance stats will remain the same, but drivers will be able to feel the increased grunt. The revisions not only increase output, but also improve the refinement and driveability of the V8 to feel more responsive at the low end of the tach.

To achieve its goals, Hyundai added a two-step variable induction system that varies the flow through the intake manifold at low and high rpm, along with continuously variable valve timing on both intake and exhaust, larger valves, and a chromium nitride coating on the pistons to reduce friction. The updated Genesis sedans will be arriving in dealerships later this year.

Gallery: 2010 Hyundai Tau V8 power-up

[Source: Hyundai]

Spy Shots: First look at the 2011 Chevy Aveo

by Sam Abuelsamid (RSS feed) on Nov 22nd, 2009 at 12:04PM

Back in August, in the wake of General Motors emergence from its pre-packaged bankruptcy, the automaker gave select members of the media a preview of several upcoming products. Among those was the next Chevrolet Aveo, which will take up the B-segment mantle to battle the new Ford Fiesta, Mazda2, Honda Fit, and Toyota Yaris. Unlike the current Aveo, which is built in South Korea by Daewoo, the new model will be built at the Orion, MI assembly plant north of Detroit.

While there had been speculation that the ungainly-looking Chevy Viva from Brazil would be the Aveo replacement, that is an entirely different car – although it will likely share some mechanical bits with the Aveo.

At the August preview, GM design manager Bob Boniface confirmed to us that the Aveo moniker would be retained because, in spite of the baggage the current model carries, it does have recognition and launching a new nameplate has been deemed too expensive a proposition. Of course, that was three months ago and the Aveo is still a year or so away from launch, so things could change. Whatever it's called, early spy shots from Brenda Priddy and Co. suggest that it's shaping up to be a better-looking car than the current model, with a wider stance that looks less tippy.

[Source: The Detroit News]

VIDEO: Audi teases the new A8 ahead of Sunshine State debut

by Sam Abuelsamid (RSS feed) on Nov 20th, 2009 at 1:29PM

Audi A8 teaser – click above to watch the video after the jump

We still have a bit over a week until Audi officially pulls the wraps off its next-generation A8 flagship sedan in Miami. As a holdover, however, they have released a teaser video, and we've got it for you. The operative word here is tease. As usual, very little of the car is actually shown, although a variety of phrases are overlaid on the imagery which feature terms like "creativity," "aesthetics," and "art factory." From a couple of the images (including the one captured above), it appears that the new A8 will probably be more sculpted than previous models, and it will likely feature elements like the so-called "tornado line" used on the side of the A4 and A5.

As a brand headliner, the A8 will surely feature an "intensive abundance of research and ideas" such as the rumored touch pad interface with handwriting or gesture recognition for the controls. No doubt more details will be trickling out over the coming week, and we'll be on hand in Miami to give you the full details as the car is revealed. In the meantime, you can check out the video now by clicking past the jump.

[Source: Audi]

REPORT: New Lexus small car may be headed for U.S. by 2012 - perhaps sooner

by Sam Abuelsamid (RSS feed) on Nov 20th, 2009 at 10:01AM

Lexus LF-Ch concept - click above for high-res image gallery

Lexus introduced its LF-Ch concept at the Frankfurt Motor Show in September and it's believed to be a shoe-in for production for the European market. However, in a new Detroit Bureau interview with the brand's general manager, Mark Templin, it is confirmed that Lexus is seriously considering bringing a production version of the hatchback to the U.S. market as well. If it does come here, it would be the smallest Lexus and would compete against the likes of the Audi A3, BMW 1 Series, Volvo C30 and Mini Cooper – only the latter of which has managed to sell in big numbers. The Lexus concept will be shown again at the upcoming Los Angeles Auto Show as well as in Detroit, where Lexus officials will be evaluating reactions to a premium priced small car.

Such cars are already well accepted in Europe and the idea of smaller premium cars may yet hold some appeal in the U.S. – especially if fuel prices rise. Lexus has no intention of decontenting the LF-Ch to keep the price down if it does come to the States. While the Detroit Bureau cautions that a production LF-Ch is likely to have a conventional powertrain as standard fitment, a hybrid will probably be needed to compete with the A3 TDI and a possible 1 Series hybrid or diesel down the line.

Gallery: Lexus LF-Ch Concept

[Source: The Detroit Bureau]

2011 Audi A8 to debut November 30th at Design Miami

by Sam Abuelsamid (RSS feed) on Nov 19th, 2009 at 5:59PM

Audi pavilion at Design Miami - Click above for high res image gallery

Audi's centennial celebration is winding down, but the German brand isn't quite ready to switch off the lights. There's at least one more big model debut planned for its 100th anniversary, and in just over a week Audi will pull the sheets off the all-new 2011 Audi A8. Although the uber-sedan will take the stage at the LA Auto Show in two weeks, the world will get its first official look on the opposite coast at Design Miami.

Audi has erected a special temporary art museum for the design show, providing a backdrop for the unveiling of the brand's new flagship. According to Audi, the sedan will be surrounded by an exhibit from the Rubell Family collection called "Beg Borrow and Steal." There will also be an installation called the "Light Light" made of LEDs and aluminum -- a fitting tribute to the new A8's aluminum structure and LED lighting. So far, all we have is images of the Audi pavilion and a few teasers of the sedan, so stay tuned for more next week.

Gallery: Audi at Design Miami

REPORT: Electric Rolls-Royce Phantom could arrive within a year

by Sam Abuelsamid (RSS feed) on Nov 19th, 2009 at 5:33PM

2009 Rolls-Royce Phantom - Click above for high-res image gallery

Adding fuel to the rumormill fire, Autocar reports that a pure electric version of the Rolls-Royce Phantom could hit the streets within 12 months. Rolls' parent company, BMW, has been getting heavily involved in EVs and the Phantom would be an obvious choice to launch its new drivetrain considering the price premium already tacked onto the brand's offerings.

Since Phantom owners tend to be driven rather than drive and rarely use their luxo-barges for long road trips (that's what the jet is for), the decision to offer an EV Phantom makes sense on many levels. Given the size and mass of the Phantom, the bulk of the batteries wouldn't affect performance or comfort, and cost... well, that's not an issue when you're dealing with $300,000+ vehicles. In spite of that, Rolls-Royce may end up only leasing the initial batch of electric Phantoms in small numbers just as BMW has done with the MINI E.

Gallery: 2009 Rolls-Royce Phantom

[Source: Autocar]

Spy Shots: BMW 1 Series hybrid spotted in Munich

by Sam Abuelsamid (RSS feed) on Nov 19th, 2009 at 3:33PM

BMW 1 Series Hybrid - Click above for high-res image gallery

At the launch of the BMW X6 ActiveHybrid, officials acknowledged the automaker would be producing several additional hybrid models in the near future. Rumors have been floating around that the new 5 Series – due to launch in 2010 – will get the same mild hybrid system going into the ActiveHybrid 7 and its crossover counterpart, but what about BMW's smaller offerings?

Testing near Munich, a BMW 1 Series mule was caught wearing "Hybrid Test Vehicle" badging, proving that BMW's hybrid system won't be used exclusively on its larger models. Given the small size of the 1, this will undoubtedly use a version of the same mild hybrid system, a modular setup that has the motor/generator sandwiched between the engine and transmission with a compact lithium ion battery in the rear.

The 1 Series hybrid will take on the production version of the Lexus LF-Ch concept recently shown at the Frankfurt Motor Show when it hits the market in late 2011 or early 2012. The Lexus is similar in size to the 1er, but will only be offered as a hybrid, while the 1 will retain conventional powertrain options. There's no word whether the Lexus or the 1 Series Hybrid will make it onto U.S. shores, but if both automakers plan to recoup development expenses, sales in North America are almost assured.

Gallery: Spy Shots: BMW 1 Series Hybrid

[Source: CarPix]

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