凯雷德Hybrid惊现国内

凯迪拉克凯雷德Hybrid，作为当今全球汽车混合动力技术最高成就的代表，自去年北京车展首度亮相后就一直备受各界关注，而关于这款车何时在国内上市的各种传言也显示了广大车迷们对它的期待心理。

近日随着上海车展的日益临近，一款白色凯雷德Hybrid惊现国内某片场，这似乎预示着Hybrid技术加身的凯雷德混合动力版已经离中国消费者越来越近了。

谍照显示，这款Hybrid车型除了车身标有明显的“Hybrid”字样之外，外观上与在售普通版凯雷德没有太大差异。凯雷德Hybrid搭载6.0升V8发动机，并且还搭载一个先进的电控变速系统（EVT）和一个安装在车体中部的扁平化的300伏镍金属氢化物电池组。动力方面，最大功率达332马力，最大扭矩可达497N·m。

在高速巡航的状态下，该发动机能够关闭一半的汽缸运作，而在低速时，除了可使用电动马达来驱动之外，也能够以四缸模式实现经济运转。这款混合动力车型的耗油量比传统的大型SUV节省50％之多，甚至低于市面上普通六缸轿车的油耗，加一次油可以比普通款SUV增加一倍的续航里程。

『现款凯雷德』

谍照里露面的这辆凯雷德极有可能是将在4月的上海车展上亮相的实车，而此次凯雷德Hybrid在国内的第二次亮相。更多消息我们将继续关注，为您及时报道。

BMW Li 7750Li 尊贵型 氢能

BMW Li 7750Li

BMW Li 7750Li

BMW Li 7750Li

BMW Li 7750Li

BMW Li 7750Li

BMW Li 7750Li

2010 Mercedes-Benz E63 AMG Sports Sedan Debut

AMG is kicking-off the 2009 driving season with a new superstar: shortly after the launch of the new E-Class, the AMG high-performance brand of Mercedes-Benz Cars presents the new 2010 E63 AMG.

This dynamic sports sedan impresses with outstanding performance, thrilling handling characteristics and advanced technology transferred from its sibling, the SL63 AMG high-performance Roadster. The E63 AMG makes its U.S. sales debut in November 2009.

The new E63 AMG distinguishes itself from the standard Mercedes-Benz E-Class sedans with a newly developed AMG RIDE CONTROL sports suspension with electronically controlled damping, revised front suspension and unique exterior and interior design.

At the same time, Mercedes-AMG has achieved a significant reduction in fuel consumption of almost twelve percent for the new E63 AMG, thanks to the precise application of several fuel efficiency improvements. With its unique combination of pioneering driver assistance systems, the E63 AMG further consolidates the brand's leading position in the field of automotive safety.

The AMG 6.3-liter V8-engine in the new E63 AMG develops an output of 518 hp and a 465 lb-ft of torque, matching the outstanding figures for the SL63 AMG. The high-performance Roadster has also transferred its AMG SPEEDSHIFT MCT 7-speed sports transmission to the new model. This transmission replaces the conventional torque converter through the use of a multi-disc wet start-up clutch. In conjunction with the four individual driving modes, rev-matched shifts and RACE START function, the resulting, direct connection to the powertrain delivers an extremely emotional and high-performance driving experience.

The AMG MCT drive unit is unique in this segment, and provides dramatic performance figures: the E63 AMG accelerates from standstill to 60 mph in just 4.4 seconds, with a top speed of 155 mph (electronically limited). The fast-revving, naturally aspirated engine with a displacement of 6208 cc impresses with its agile responsiveness, muscular power delivery and high redline. The AMG V8 sound is a thrilling partner for mile after mile, while the smooth-running engine guarantees renowned Mercedes long-distance comfort. A newly designed water cooling system ensures maximum endurance even under the enormous dynamic stresses of the racetrack.

Fuel consumption cut by almost twelve percent
Despite 11 hp of additional output versus the preceding model, the E63 AMG showcases several advancements designed to improve fuel efficiency, including on-demand delivery of fuel and alternator management with recuperation of engine power during overrun. In-engine friction is also reduced by the AMG-exclusive twin-wire arc spray coating process used to coat cylinder walls.

The AMG SPEEDSHIFT MCT 7-speed sports transmission also makes a decisive contribution to fuel economy: a multi-disc wet clutch running in an oil bath replaces the previous torque converter. This unit responds extremely rapidly, directly and without the losses typical of a torque converter transmission thanks to its low rotational inertia.

The transmission is equipped with four driving modes: "C" (Controlled Efficiency), "S" (Sport), "S+" (Sport plus) and "M" (Manual), which can be selected using a rotary electronic switch in the AMG DRIVE UNIT. Partial suppression of individual cylinders by interrupting ignition and injection during gearshifts under full load contributes to considerably faster shift times. In M mode the AMG SPEEDSHIFT MCT 7-speed sports transmission allows gearshifts to be performed in 100 milliseconds.

In the even more fuel-efficient driving mode Controlled Efficiency, the transmission shifts the gears with deliberate smoothness, and the transmission control unit is programmed to perform early upshifts to keep engine speeds as low as possible.

At the same time, the AMG SPEEDSHIFT MCT 7-speed sports transmission met the most demanding requirements where driving dynamics are concerned: fast and precise multiple downshifts ensure first-class agility in conjunction with the automatic rev-matching and RACE START function: this enables the E63 AMG driver to call on the maximum acceleration potential automatically.

Electronically controlled damping system and a new front axle
Sporty or more comfort-oriented? The driver of the new Mercedes-Benz E63 AMG is not obliged to accept any compromises in this respect. The AMG RIDE CONTROL sports suspension copes equally well with the dynamic cornering of the racetrack and more comfortable, sedate driving. High performance and typical Mercedes long-distance comfort go together as an extraordinary synthesis in the E63 AMG.

This is made possible by the newly developed AMG RIDE CONTROL sports suspension. While new steel spring struts are used on the front axle, the rear suspension features AMG-specific air springs. The advantage of this solution, which is exclusive to AMG, is that the front spring struts ensure more sensitive responses while the rear air struts with their automatic level control system keep the vehicle at a constant height, irrespective of the load.

A new, electronically controlled damping system automatically varies the damping characteristics according to the driving situation, reducing the roll angle of the body. The result is instant adjustment to provide the best possible ride comfort together with the greatest possible agility. In addition, the driver is able to choose between the three suspension modes of Comfort, Sport and Sport plus at the touch of a button.

The E63 AMG is also equipped with a newly developed, unique front axle with a 2.2 inch (56 millimeter) wider track, a tubular stabilizer bar, new control arms, new wheel bearings, newly-designed bushing geometry and kinematics and new wheel location for more negative camber – thereby providing more grip when taking turns at speed.

The AMG-specific kinematics also ensures significantly more precision. This is a highly sophisticated axle design whose principle has already proved its worth in the C63 AMG. The rear axle likewise has more negative camber, optimized elastokinematics and a new subframe mounting for greater stability at the physical limits.

Newly developed power steering and individual 3-stage ESP®

For more direct responsiveness, the speed-sensitive rack-and-pinion steering is also a new development. The steering ratio of 14 : 1 is 22 percent more direct (quicker) than in the standard production models, while a more rigid steering column plus the reconfigured characteristic mapping of the speed-sensitive servo assistance ensure better steering precision and improved road contact.

The 3-stage ESP® familiar from the SL63 AMG and C63 AMG enables individual settings to be selected – with clear benefits in terms of driving pleasure combined with the same high level of handling safety. The ESP® key in the AMG DRIVE UNIT allows the driver to choose between "ESP ON", "ESP SPORT" and "ESP OFF" – with the currently active mode shown in the central display of the AMG instrument cluster.

Perfect deceleration even during performance driving is ensured by the AMG high-performance braking system with 14.2 inch, internally ventilated and perforated brake discs all-round. Particularly resistant, motorsports-tested compound (two-piece) construction technology is used at the front axle. Outstanding grip is ensured by the 18-inch AMG light-alloy wheels with a width of 9 and 9.5 inches and mixed tire sizes of 255/40 R 18 at the front and 285/35 R 18 at the rear.

Decidedly dynamic interior and exterior
The purposefully dynamic design of the E63 AMG is fully in keeping with the vehicle's impressive technology. The front aspect is characterized by 17-millimeter wider fenders bearing "6.3 AMG" lettering, the new AMG front apron with large intake air apertures and the AMG-specific daytime driving lights in LED technology. In conjunction with the optional Bi-Xenon Headlamps with Active Curve Illumination, the E63 AMG is equipped with tinted main headlamps.

The striking visual presence is further enhanced by the AMG side skirts and AMG rear apron with a black diffuser insert. As a hallmark of the brand, the AMG sports exhaust system has two newly designed, chrome-plated twin tailpipes.

The new interior of the E63 AMG is an exciting blend of high-grade materials and functional sportiness. Exclusive features include electrically adjustable AMG sports seats with improved lateral support and the AMG sports steering wheel in a four-spoke design with AMG shift paddles.

As a completely new feature exclusive to the E63 AMG, the AMG selector lever has one-touch logic. Directly adjacent to it in the center console is the AMG DRIVE UNIT, which provides adjustments for the MCT sports transmission, the ESP functions, the suspension setup and the AMG driving modes. Standard equipment also includes high-grade leather upholstery in three different colors, the AMG instrument cluster with an AMG main menu, door entry sills with AMG lettering and a sports pedal cluster – both in brushed stainless steel.


Even more individuality with tailor-made AMG extras
Customers can select the optional AMG Performance Package, which includes the following:
• Lightweight, forged 19-inch AMG light-alloy wheels with size 255/35 R 19 tires at the front and 285/30 R 19 at the rear
• AMG Performance suspension with stiffer spring rates
• AMG rear axle locking differential with 40 percent locking action
• AMG Performance steering wheel in a three-spoke design
• Top speed raised to 186 mph

Active and passive safety at a new level
The E63 AMG traditionally meets the very highest expectations with respect to active and passive safety. Standard features include the new drowsiness detection system ATTENTION ASSIST, the unique preventive occupant protection system PRE-SAFE®, Brake Assist PLUS, eleven airbags and crash-responsive NECK-PRO head restraints. Optional safety features can bring the vehicle to a level unprecedented in this class with Lane Keeping Assist and Blind Spot Assist systems, the PRE-SAFE® Brake with an automatic emergency braking function, Adaptive High Beam Assist and Night View Assist PLUS.

2009 VW Jetta TDI Road Test: Turbocharged Torque

Torque is described as a force that tends to turn things and, in the case of the 2009 Jetta TDI, its abundance turned me into a fan of this latest in a long line of Volkswagen "oil-burners" by providing strong performance and flexibility along with exceptionally high levels of fuel economy.

Torque is what you get when you, for example, tug on the handle of a wrench to tighten or loosen a nut. Doing so exerts a twisting force still expressed here, in Ye Olde English, in lb-ft, as nobody on this side of the Atlantic has any idea what a newton-metre is.

Torque in an engine is generated by burning a fuel/air mixture in a cylinder, with the pressure of the expanding gases pushing the piston, which is linked to the crankshaft by a connecting rod, downwards.

As this occurs, the angle generated by the crankshaft "throw" increases and the rod, like the wrench handle above, rotates the crank. And that, with a few things such as clutches and transmission gears in between, is what makes your car move.

The Jetta TDI, with its turbocharged diesel engine, does this with a degree of vigour, accompanied by a high degree of overall flexibility not normally experienced in the compact-car category. Most small-displacement gasoline engines don't produce a lot of torque, and what they do is generated at higher engine speeds.

The TDI's four-cylinder engine delivers a disproportionate (for its displacement) amount of low rpm "grunt" that lets it charge off the line like a V-6 but also maintains that strong pulling power at highway speeds.

This allows it to coast along at minimal revs in top gear while sipping fuel at such a frugal rate that 1,000 km per tank wouldn't be an unlikely achievement. In fact, the number on the trip computer that estimates how much distance I had before needing more gas disconcertingly went up for the first hundred kilometres or so that I drove the car.

The TDI's arrival last year marked the return of the popular diesel engine option to the VW lineup in North America — it hadn't been able to sell a diesel here in 2007 due to U.S. emission standards — and the Jetta range now offers three engine choices, each of which gives the car a different driving character.

There's a gasoline-fuelled, 2.5-litre, four-cylinder that makes 177 hp at 5,700 rpm and 177 lb-ft of torque peaking at 4,250 rpm. With six-speed automatic transmission, it delivers very good performance and fuel economy ratings of 10.5 L/100 km city and 7.2 highway.

Also available is a performance-oriented, gas-burning, turbocharged 2.0-litre unit rated at 200 hp at 5,100 rpm and 207 lb-ft of torque from 1,700-5,000 rpm. This makes the 2.0 TSI Jetta a very quick car indeed and, thanks to the turbo, produces plenty of torque over that wide rpm range, which helps it garner very good fuel economy ratings of 9.0 city and 6.8 highway.

The 2.0-litre, four-cylinder diesel engine in the TDI delivers the least power, 140 hp at 4,000 rpm, but the most torque, 236 lb-ft, all of which is available from 1,750 to 2,500 rpm. Its fuel economy ratings are 6.8 city and 4.9 highway. The on-board readout was showing an average of 7.1 L/100 km when I returned it.

The "oil burner" appellation used above is in reference to the bad old days of low-powered and stinky diesel engines. This new one makes 40 hp more than the previous 1.9-litre unit and burns ultra-low-sulphur diesel very efficiently and cleanly and is also quieter.

And the direct shift gearbox (DSG) is a treat, snapping off lightning-quick shifts automatically or allowing you to select gears yourself. Although it takes a while to get used to the fact that it only revs to about 4,500 rpm between the gears, acceleration is surprisingly strong.

And its direct steering, firm suspension and good brakes also contribute to making it a very enjoyable car to drive.

The Jetta TDI is available in base manual transmission Trendline form at $24,275, in Comfortline trim at $26,775 and Highline versions go for $29,775. Our DSG-transmission-equipped tester had a sticker price of $31,175 and an all-in-but-the-taxes cost of $33,510. By comparison, a base gasoline Jetta 2.5 goes for $21,975 and a base 2.0 TSI for $27,475.

The base TDI comes with the usual features at this price, plus cruise control, climate control, 16-inch wheels, exterior temp gauge, a single CD audio system and front, side and side-curtain airbag systems.

The Comfortline has some extra chrome trim, a power-reclining driver's seat, heated seats, leather-wrapped wheel and a premium six-disc audio system. The Highline adds a compass, leather upholstery, a multi-function wheel, a sunroof and a rear armrest/pass-through.
In typical VW fashion, the interior is designed to meet more utilitarian than utopian standards for style. There's rather-uninspired plastic aplenty, not only where you can see it but also feel it — the surprisingly nasty and hard-edged door pull, for example.

The somewhat stark look and feel is ameliorated by stitched padding on the armrests, rather-nice mesh-finish aluminum trim and thin aluminum bezels around the gauges that perk up the plainness a bit.

The cabin is quiet enough at highway speeds, the leather-clad front seats are supportive and comfortable, the rear seat will handle two in comfort, headroom is good front and rear and the trunk capacity is fine at 400 litres.

In fact, if I had to cover a lot of mileage on an annual basis, I'd be happy to do it in the TDI, and would likely save some money if I kept doing it long enough. But the potent 2.0 TSI turbo's fuel economy numbers are pretty good, too, and it would still be my choice among the Jetta triad.