2014 Mercedes-Benz E-Class Sedan

Mercedes-Benz' E-Class lineup combines all of the virtues typically associated with the three-pointed star brand - luxury, performance and cutting-edge technology - in an appealing midsize package. Notable in the past for its understated visual presence, the E-Class was recently updated with sleeker styling, impressive new safety systems and more. Additionally, it's offered with a choice of gasoline, diesel and hybrid powertrains.

Along with the sedan discussed herein, the E-Class is available in wagon, coupe and convertible bodystyles, as well as a high-performance E63 AMG derivative.

While it continues to feature a formal roofline and a traditional three-box sedan shape, the E-Class has been updated with a number of stylistic revisions that give it a more-eye catching appearance than before. In place of the quad headlights that have adorned every E-Class since the W210, the facelifted model sports simplified single-piece units with a more streamlined look. The vintage-inspired but busy "pontoon" rear fenders have also been axed in the name of simplicity.

Two different front-end treatments are available - the old-school Luxury model wears an elegant three-slat grille with a small Mercedes emblem protruding from the hood, while the Sport variant receives a more aggressive two-slat unit with an oversized badge. Sport models also use an AMG-designed body kit and sit on a stiffened and lowered suspension.

Inside, things are as plush and refined as ever, with generous amounts of wood and chrome trim creating a decadent environment. Notable new touches include a revised steering wheel, a classy, Art Deco-inspired clock and a reworked center stack with more intuitive controls. Mercedes' COMAND infotainment system remains; controlled either by voice commands, a central knob or steering wheel-mounted buttons, it integrates the sedan's audio, navigation and Bluetooth-based connectivity functions into a single unit - a seven-inch display screen mounted on the dashboard.

An optional mbrace system adds a host of cloud-based goodies, including a concierge service, location-based traffic and weather updates, stolen vehicle location assistance, automatic collision notification and more. Available apps add internet browsing, Google local search with street view, Yelp reviews, Facebook access and news reports. Owners can even use an mbrance smartphone app to remotely lock, unlock or locate their E-Class.

A wide variety of optional extras can be spec'd to enhance the E-Class experience, including premium Nappa leather upholstery, heated and ventilated front seats, a 14-speaker Harman/kardon surround sound system and a rear seat video entertainment system.

Powertrains and Handling
The standard E-Class sedan can be had in gas-powered E350 and E550 forms, and diesel E250 BlueTEC and gas-electric E400 hybrid models are also on offer.

The impressively fuel-efficient E250 BlueTEC is powered by a turbodiesel 2.1-liter four-cylinder that produces 195 horsepower and 369 lb-ft of torque. The E350 utilizes a direct-injected 3.5-liter V6 produces 302 horsepower and 273 lb-ft of torque, while the lackluster E400 Hybrid tacks on a tiny 0.8 kWh lithium ion battery and a brushless electric motor that boosts total output to 329 horsepower. The E550 packs a twin-turbocharged 4.7-liter V8 with 402 horsepower and 443 lb-ft of torque.

All four E-Class models shift through a smooth seven-speed automatic transmission. Rear-wheel-drive is standard on the E250, E350 and E400, while 4MATIC all-wheel-drive is the standard configuration for the E550. The E250 and E350 can be optioned with 4MATIC.

Fuel economy for the numerous E-Class derivatives are as follows: 28 city/45 highway mpg for the E250, 27/42 for the E250 4MATIC; 21 city/30 highway mpg for the E350, 21 city/29 highway for the E350 4MATIC; and 17 city/26 highway mpg for the E550.

Despite its hybrid accouterments, the E400 returns just 24/30 mpg, meaning its mileage barely beats the E350 and is significantly bettered by the E250. Given its price premium over both aforementioned models, the E400 is a tough sedan to recommend.

Mercedes offers the E-Class with both Luxury and Sport packages - as one would expect, Luxury models feature comfort-focused suspension tuning, while a tauter setup is used for the Sport. Updates to both result in a slightly firmer ride with better body control, although the E-Class remains more of a coddling cruiser than a sport sedan.

Standard and Optional Features
Notable standard features include a power sunroof, real wood trim, MB Tex leatherette upholstery, dual-zone automatic climate control 14-way power adjustable front seats and a COMMAND infotainment system with a 7-inch display screen.

There is no lack of optional features available on the E-Class for those seeking an extra touch of luxury.

The Premium One Package nets a navigation system with a 10 GB music register, a harmon/kardon surround-sound audio system, heated and ventilated front seats, an iPod/MP3 media interface, a power rear sunshade, a rear-view Camera, SIRIUS satellite radio with real-time traffic service, enhanced voice control, ZAGAT Survey restaurant guide and Gracenote media database.

The Lighting Package brings full-LED headlamps with Active Curve Illimination, Adaptive Highbeam Assist, LED front turn indicators, a headlamp washing system and corner-illuminating front lamps.

The Sport Styling Package adds an aggressive body kit, a two-bar grille, a sport-tuned suspension, 18-inch twin five-spoke alloy wheels and sport interior trim.

Safety-focused kit includes the Lane Tracking Package, which includes Blind Spot Assist and Lane Keeping Assist, and the Driver Assistance Package, which includes Active Blind Spot Assist, Active Lane Keeping Assist, an active cruise control system with steering assist and Pre-Safe with Cross-Traffic Assist. For more info on these safety systems, scroll down to the "occupant Safety" section.

Highlights from the stand-alone options list include mbrace, a rear entertainment system with dual headrest-mounted LCD screens, a electronic trunk closer, a proximity key, a household-type 115V power outlet, an active multicontour driver's seat, a panoramic sunroof, leather upholstery and premium Nappa leather upholstery.

Occupant Safety
Mercedes-Benz has long been known for its safety features, and the E-Class will only add to that reputation. In addition to traction and stability control systems, the car boasts nine supplemental restraints including two-stage front air bags, a knee air bag for the driver and pelvic air bags which work together with full-length side curtain and front side air bags (rear side units are optional) to provide extra protection for front occupants in dangerous side-impact collisions.

Also standard is an "ATTENTION ASSIST" system that can alert the driver to the first signs of drowsiness, a factor that causes more than 100,000 accidents a year in the U.S.A steering sensor is coupled to smart software that uses 70 parameters to establish a unique driver profile during the first 20 minutes of driving. Between 50 and 112 mph, the system identifies the erratic steering corrections drivers make as they begin to get drowsy and triggers an audible warning and a "Time for a Rest?" message with a coffee cup icon in the instrument cluster.

New for the latest model year is Collision Prevention Assist, which uses radar to determine whether the E-Class is in danger of colliding with a vehicle or object up ahead. Active at speeds above 20 mph, it automatically prepares the brakes to apply the ideal leveling of stopping power once the driver hits the pedal.

Optional safety gear includes Active Lane Keeping Assist, a new technology that warns the driver if it detects that the E-Class is drifting into an adjacent lane and can apply steering inputs to remain on the proper course. Also available is Active Blind Spot Assist, which uses radar to detect if a vehicle is in the blind-spot area. It provides driver alerts and can also steer the car out of harm's way if the driver accidentally starts to merge into a vehicle.

Pre-Safe Brake detects impending collisions and can automatically apply 100 percent of the E-Class' braking force to avoid or mitigate the severity of the crash. It also includes Cross-Traffic Assist, which can detect potential collisions with vehicles approaching from either side of an intersection. Both are part of the Distronic Plus with Steering assist system, an active cruise control setup that can maintain a set distance from the car ahead and also keep the vehicle centered on straight roads or in gentle curves.

Key Competitors
Competing against the E-Class for the checkbooks of mid-size luxury sedan buyers are the BMW 5-Series, Audi A6, Jaguar XF, Lexus GS 350 and the Infiniti M37 and M56.