Mercedes-Benz has lifted the veil off of the all-new 2014 C-Class sedan ahead of its scheduled public debut at next month’s Detroit Motor Show.

The fourth-gen C-Class is 9.4 cm longer and 4.3 cm wider than the outgoing model, a modification that Mercedes says is necessary because the average height of passengers is growing each year.

As before, the sedan is available with two front end treatments called Luxury and Sport, respectively. Heavily inspired by the S-Class flagship, the Luxury model wears an elegant three-slat grille with a small Mercedes three-pointed star protruding from the hood. The Sport variant falls in line with the front-wheel drive CLA-Class thanks to a more aggressive two-slat grille adorned by an oversized emblem. Both variants are fitted with specific bumpers on both ends.

Mercedes has managed to trim 100 kg off of the C thanks to a new body structure made up of aluminum, high-strength steel and composite materials. Increased rigidity and improved safety are some of the other by-products of the new architecture.

Upmarket interior
Mercedes is moving the C upmarket in order to differentiate it from the entry-level CLA-Class. The next C’s dashboard is more evocative than before and the cockpit is packed with numerous high-tech features borrowed directly from the S-Class. The big standouts include a 7-inch screen on the dash, a smartphone-esque surface on the center console and a control knob that lets the passengers operate the various functions of the infotainment system. An electric parking brake and electromechanical power steering are standard on all models.

The added length provides more space for both front and rear passengers, and trunk space checks in at 16.9 cubic feet, a noticeable increase over the current model’s 12.4 cubic feet.

Interestingly, a GPS-sensitive climate control unit can detect tunnels and switch to air recirculation model in order to prevent fumes from entering the cabin. Additionally, an AIR-BALANCE system discreetly dispenses perfume to dispel unwanted odors.

Buyers can customize their car’s interior thanks to three design and equipment lines, and the list of options includes a class-first air suspension on both axles, a heads-up display and upgraded the 7-inch screen to a 8.4-inch unit that runs Mercedes’ COMAND Online, a navigation and multimedia system that also provides an internet hotspot

On the safety front, the C comes standard with numerous airbags and a host of high-tech driving aids including Attention Assist and Collision Prevention Assist Plus. Extra cost items include Distronic Plus, which can take control of the car during a traffic jam, Brake Assist System Plus, a 360-degree camera and Adaptive High Beams Assist Plus.

Powertrain lineup

In the United States, the new C-Class will launch with a choice of two engines. The C300 will be fitted with a 2.0-liter turbocharged and directed-injected 2.0-liter four-cylinder capable of 235 horsepower and 273 lb-ft of torque, while the up-level C400 will sport a 3.0-liter V6 – also turbocharged and direct-injected – good for 329 horsepower and a stout 354 lb-ft of twist.

Both mills will be mated to a seven-speed automatic and, initially, come exclusively with Mercedes’ 4MATIC all-wheel-drive system. Rear-wheel-drive is slated to arrive after launch, and further down the road, a nine-speed automatic will supersede the seven-cog unit.

A gasoline-electric hybrid will also join the lineup later in the production run, and Mercedes is busily developing a plug-in hybrid variant whose launch is still several years away.

The Alabama-built 2014 C-Class will arrive in showrooms several months after its debut in Detroit. A convertible, a coupe, and a BMW 3-Series GT-fighting hatchback will expected to debut later in 2014, while buyers in Europe will have access to a station wagon.