2012 Chevrolet Sonic Hatchback/Sedan: official details, photos and specs

Article by Christian Andrei, on January 10, 2011

GM unveiled today at the North American International Auto Show the all-new 2012 Chevrolet Sonic, a new car that promises to offer an aggressive design backed by turbocharged performance. As you may know already, the new 2012 Chevrolet Sonic is based on the Avero RS Concept, unveiled one year ago at the 2010 Detroit Auto Show.

The new car will be offered in two body styles: a stylish four-door sedan and a sporty five-door. Under the hood, we find a choice of two engines: the Ecotec 1.4L turbo and the Ecotec 1.8L,which means that we will find the same engines used by the new 2011 Chevrolet Cruze.

The 2012 Sonic will also be offered with a choice of three transmissions: a five-speed manual and six-speed automatic with the 1.8L and a six-speed manual with the 1.4L turbo.

The 1.4-liter Ecotec engine delivers 138 horsepower (103 kW) and 148 lb.-ft. of torque (200 Nm) between 1,850 rpm and 4,900 rpm. The 1.4-liter engine is offered with a six-speed manual transmission, while the bigger 1.8-liter engine is paired with five-speed manual or six-speed automatic transmissions.

Some of the features offered by the new 2012 Chevrolet Sonic include OnStar with six months of Turn-by-Turn navigation, remote start, heated front seats and sunroof (all rarities in the segment), 10 standard air bags, antilock brakes, electronic brake force distribution, brake assist and OnStar with Automatic Crash Response.

Inside, the car is available in two colors (dark titanium and brick) and flows seamlessly into the upper doors, with premium low-glass finishes.

Exterior Design

Sonic sedan and the five-door model, when looked at any angle, expresses refinement, stability, and strength. With its planted, wide stance and the wheels-at-the-corners proportions, it exhibits excellent performance. Even when the car is not moving, the raked body lines give the impression of movement.

The design cues clearly show that it is indeed a Chevrolet. The aggressive cues for example have the motorcycle-inspired round headlamps and fender flares. These combine well with the global design cues like the round taillamps and the dual-element grille.

The leading edge of its hood that is above its headlamps gives a character line that then flows in a sleek side profile. This is highlighted by the low roofline, high beltline, and continuous body side lines. The side mirrors are shaped to give the impression of disappearing to the profile.

The five-door models and the sedan however have certain differences. The five-door for example has a two-box, tight shape with the diving feature lines. The sedan meanwhile has a “notchback” profile which is not only more upscale but gives a mature presence.

A quick look shows that the five-door model appears to be like the three-door hatch especially with the rear door handles that are discreetly placed in the car’s “C”-pillar area. The rear portion meanwhile has some unconventional features like the exposed rear taillamps that are clearly inspired by the motorcycle.

Other details that strengthen the attention to detail and the quality of the Sonic are the honeycomb grille inserts in matte black and the chrome grille surrounds. A wide range of large wheel sizes is also offered, including the alloy 17-inch wheels that highlight its sporty image.

Press Release

Chevrolet Creates Waves With The All-New 2012 Sonic

Chevrolet displayed the all-new 2012 Sonic at the North American International Auto Show. Its youthful, aggressive design is backed by turbocharged performance and agile ride and handling, combining to deliver an efficient, fun-to-drive small car.

The Sonic is offered in two body styles: a stylish four-door sedan and a sporty five-door. Each delivers class-leading rear-seat roominess and cargo space. A variety of connectivity features enhance the driving experience.

“The all-new Chevrolet Sonic blends the practicality of a small car with the passion for driving that Chevrolet vehicles like the Corvette are known for,” said Chris Perry, vice president of Chevrolet marketing. “Its combination of great design, fun driving experience and the latest connectivity features create a serious competitor with a fun spirit.”

Production of the Sonic begins later in 2011 at the General Motors Orion Assembly Center in Michigan, which received a $545-million investment in upgrades and retooling, and will help restore approximately 1,000 jobs in the metropolitan Detroit area.

“Chevrolet is the only company building a small car in the United States,” said Perry. “We believe the Sonic will bring substance to the segment, with progressive styling, performance and value that will change perceptions of what a small car can be in America.”

Sonic’s highlights include:

  • Available efficient Ecotec 1.4L turbo engine rated at an estimated 138 horsepower (103 kW) – 18 horsepower (14 kW) more than Ford Fiesta – that delivers competitive fuel economy. It’s the same engine used in the Chevrolet Cruze in a smaller, lighter package for a greater feeling of performance
  • Standard Ecotec 1.8L engine paired with five-speed manual or six-speed automatic transmissions
  • Ecotec 1.4L turbo available with a six-speed manual transmission
  • Ride and handling tuned by Chevy Corvette engineers; standard electronic power steering and StabiliTrak electronic stability control with rollover sensing
  • Sedan model offers segment-best trunk capacity that is greater than most compact cars; hatchback and sedan offer better rear-seat roominess than Ford Fiesta. With a rear seat that folds nearly flat, the Sonic hatchback has greater cargo capacity than Fiesta
  • Connectivity includes OnStar with six months of Turn-by-Turn navigation. Available features include XM Satellite Radio, USB and Bluetooth functionality and MyChevrolet mobile application with OnStar MyLink vehicle connectivity
  • Remote start, heated front seats and sunroof, all rarities in the segment
  • Comprehensive safety features include 10 standard air bags, antilock brakes, electronic brake force distribution, brake assist and OnStar with Automatic Crash Response.

Progressive exterior design

From every angle, Sonic sedan and five-door models convey strength, stability and refinement. A wide, planted stance, with wheels-at-the-corners proportions, conveys performance. Progressive, raked body lines suggest movement even when the car is stationary.

Aggressive cues, including fender flares and motorcycle-inspired round headlamps, are blended with global design cues – a dual-element grille and round taillamps – for a design instantly recognizable as Chevrolet. The leading edge of the hood forms a character line above the headlamps, which flows in a sleek side profile characterized by uninterrupted body side lines, a high beltline and low roofline. The side mirrors carry the same shape as the car and seemingly disappear into the profile.

The sedan and five-door models are distinctively different. The five-door carries a tight, two-box shape with aggressive, diving feature lines, while the sedan’s “notchback” profile has a more upscale and mature presence. At first glance, the five-door model looks like a three-door hatch because the rear door handles are discreetly located in the “C”-pillar area. The rear of the five-door continues with unconventional details, including exposed, motorcycle-inspired rear taillamps.

Details that reinforce Sonic’s quality and attention to detail include chrome grille surrounds and matte black honeycomb grille inserts on all models, while a range of large wheel sizes, including 17-inch alloy wheels, reinforces its sporty demeanor.

Inspired interior

Sonic’s cabin complements the motorcycle-inspired exterior with a detailed instrument cluster featuring a large, round analog tachometer set within an asymmetrical LCD readout, with a large digital speedometer display.

Additional interior highlights include:

  • The mid-instrument panel surface is available in two colors (dark titanium and brick) and flows seamlessly into the upper doors, with premium low-glass finishes
  • The automatic shift knob has a “cobra head” design,” while the manual shifter has a chrome-finished knob
  • Tubular outboard climate outlets protrude from the instrument panel surface.
  • The interior includes storage compartments in the center stack and doors. The rear seats fold flat for carrying larger items. Front bucket seats are standard and heated front seats are available.

Cruze-based powertrains

Chevrolet Sonic models are powered by efficient, power-dense, small-displacement engines, including the Ecotec 1.4L turbo and the Ecotec 1.8L – the same engines used in the new Chevrolet Cruze. Three transmissions are available: a five-speed manual and six-speed automatic with the 1.8L and a six-speed manual with the 1.4L turbo.

The Ecotec 1.4L turbo’s power ratings are estimated at 138 horsepower (103 kW) and 148 lb.-ft. of torque (200 Nm) between 1,850 rpm and 4,900 rpm. The wide rpm range for the maximum torque – a specific trait of turbocharged engines – helps the engine deliver a better driving experience and performance. Premium design elements give the engine world-class smoothness and durability.

Features include:

  • Low-mass hollow-frame cast iron block
  • Dual overhead camshafts with variable valve timing
  • Chain-driven cams
  • Roller-finger camshaft followers
  • Piston-cooling oil jets and integrated oil cooler
  • Variable-flow oil pump
  • Electronically controlled thermostat.
  • The 1.4L’s turbocharger is integrated within the exhaust manifold, for reduced weight and greater packaging flexibility in small vehicles. A reinforced crankshaft and stronger connecting rods deliver additional strength to support the engine’s pressurized power and torque over a wide rpm band.

The naturally aspirated Ecotec 1.8L engine has many of the same features of the Ecotec 1.4L turbo. It is a compact and durable four-cylinder engine designed for low maintenance, low emissions and fuel efficiency. Its two-stage variable intake manifold allows approximately 90 percent of peak torque to be available from 2,400 rpm to 6,500 rpm. It is estimated at 135 horsepower (101 kW), along with 123 lb.-ft. of torque (167 Nm) at 3,800 rpm.

Engineered for agile, athletic ride and handling

The Sonic brings agility and a fun-to-drive feel that is rare in the segment. Engineers who also work on the Corvette tuned the Sonic’s confident ride and handling, giving it a more direct and athletic feel, while balancing the vehicle for the broad range of driving conditions in North America.

All models feature a MacPherson strut front suspension with coil springs and stabilizer bar, and a semi-independent, torsion beam axle-mount compound link-type rear suspension – featuring a robust, tubular V-shape beam – with gas-charged shocks. The front and rear tracks are identical at 59.4 inches (1,509 mm), for well-planted stability and excellent balance.

Electronic power steering is standard and features a wear compensator that continually adjusts the system interaction with the steering gear to ensure precise steering action over the life of the system.

Sonic’s body structure is designed to be one of the stiffest in the segment. Its rigidity enabled engineers to tune the ride and handling more precisely. Sonic’s unique “flat top frame” cradle, for example, assures optimal stiffness in the front chassis portion of the vehicle. The rear axle is essentially a straight axle without contour for packaging restraints and reduced noise, vibration and harshness.

A range of wheel sizes is available, including 17-inch wheels and sport tires. Power-assisted front disc and rear drum brakes are standard, along with a four-channel antilock braking system. The four-sensor system – one at each wheel – incorporates electronic brake force distribution, which balances braking performance based on such factors as road conditions and the weight of passengers and/or cargo.

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