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The Detroit-based automaker has not yet released details on its Z-Spec concept models, but from what we can tell by looking at the photos, all three cars receive similar upgrades including unique alloy wheels wrapped in chunkier tires, exterior graphics, mild body modifications and numerous touches inside like the sports steering wheel and niftier materials and colors. Photo gallery after the jump.
General Motors' new city car, the Chevrolet Spark, will make its German market debut at the Frankfurt Motor Show in September. The Spark, which was shown in final production form at the Geneva Salon earlier this year, is due to go on sale in the majority of European markets at the beginning of 2010 where it will be offered with a choice of two newly-developed, all-aluminum 1.0 and 1.2-liter gasoline engines, generating 66HP and 78HP respectively. 
Both engines are mated to a five-speed manual gearbox with the 1.2-liter unit expected to deliver zero to 100km/h (62mph) acceleration in 12.4 seconds while returning a combined fuel consumption of under 5.0lt/100 km (47+ mpg US).
The Spark is expected to arrive at U.S. showrooms during the first half of 2011.
General Motors chose this year's Geneva Motor Show to unveil the all-new Chevrolet Spark supermini that will go on sale in Europe later this year followed by the USA, India and other core international markets. Derived from the Beat concept car, the most popular of a trio of Chevy mini concepts that toured international motor shows in 2007, the five-door Spark is powered by a choice of 1.0 and 1.2-litre petrol engines developing 66 and 78HP respectively.
Both engines are mated to a five-speed manual gearbox and are expected to offer a combined cycle fuel economy of below 5.0L/100 km (over 47mpg US), together with CO2 emissions of less than 120 gr/km. Chevrolet said that the 1.2-liter engine is expected to deliver zero to 100 km/h (62 mph) acceleration in 12.4 seconds.
Packing a 2,375 mm wheelbase into its 3,640mm long body, the Spark offers 170-liter trunk volume, which can be increased to 994 liters by lowering the 60/40 split-fold rear seat-back.
Since General Motors is investing heavily on the upcoming Transformers 2 movie, 'Revenge of the Fallen' with five Chevrolet-based characters taking roles as Autobots, it doesn't surprise us at all that the automaker managed to secure exclusive footage of the film edited by director Michael Bay. The video that follows contains scenes with all five Chevy-bots, including SIDESWIPE (Corvette Stingray concept), SKIDS and MUDFLAP (based on Chevy's Beat and Trax concepts), JOLT (Volt) and of course, BUMBLEBEE (Camaro SS).
Dave Lyon, director of GM Design, walks us around the all-new Chevrolet Spark minicar that makes its world premiere at the Geneva Auto show in March 2009. When the Spark hits European showrooms later this year replacing the Matiz in Chevy's range, it will be offered with 1.0-liter and 1.2-liter petrol engines. Sales in the U.S. and other major markets will follow in 2011. Click here for more photos and details or hit the jump to watch the video.
Next month's Geneva Show will see the world debut of the 2010 Chevrolet Spark which is set to go on sale in Europe towards the end of the year with the U.S.A and other core international markets following suite in 2011. Due to replace the Matiz in the 'Old Continent', the Spark was inspired by the Chevy Beat 3d concept, the most popular of a trio of mini-car concepts that were revealed back in 2007. 
Even though the production Spark comes with a five-door body style, it retains all of the concept's styling cues adding a few more interesting details such as the 'hidden' rear door handles. With an overall length of 3,640 mm and a 2,375 mm wheelbase, the Spark is slightly larger than Fiat's A-Segment Panda that measures 3,538 mm in length.
The design of Spark's interior continues the funky exterior theme with a swoopy dashboard and a motorcycle-inspired instrument cluster that is mounted on the on the steering column.
In Europe, power will come from a choice of 1.0 and 1.2-litre 16-valve four-cylinder gasoline engines with GM promising that they will deliver "excellent fuel efficiency and low emissions."
Depending on global markets, the Spark's safety equipment will include driver and passenger front air bags, front side airbags, roof rail head curtain airbags, antilock brakes and electronic stability control. Prices and exact equipment specifications are be announced closer to the car's on sale date.
