“Drop-dead sexy” might not be the first phrase that springs to mind when you think of midsize sedans, but after spending considerable time with the 2006 Mercedes-Benz CLS500, it’s hard to find a more fitting description for this curvaceous four-door. Beyond its striking aesthetics, the CLS500 reveals itself to be more than just a pretty face. It masterfully balances the practicality of a sedan with the alluring style of a coupe, reminiscent of Mazda’s RX-8’s approach. However, like many vehicles prioritizing style, our test drive did uncover a few minor shortcomings. Nonetheless, the attention-grabbing 2006 Benz Cls500 marks a significant stride for a manufacturer traditionally known for its more conventional, even conservative, sedan designs.
Model Lineup: CLS500 and CLS55 AMG
The 2006 Mercedes-Benz CLS-Class lineup offers two primary trims, primarily distinguished by their powertrains. Following Mercedes-Benz’s strategy of creating sportier variants from existing sedan platforms – in this case, the E-Class sedan – the CLS emerges as the tenth model in their range. Compared to the E-Class, the CLS-Class extends nearly 3.5 inches in overall length while maintaining the same 112.4-inch wheelbase. It’s also wider by 2.5 inches and lower by 2 inches than its E-Class counterpart. The mainstream 2006 Benz CLS500, equipped with a V8 engine, was the focus of our week-long test. For those seeking ultimate performance, the CLS55 AMG beckons with a formidable 469-horsepower, 5.5-liter V8 engine, coupled with a lowered suspension, 19-inch wheels, and unique body styling.
Coupe or Sedan: Defining the CLS
Mercedes-Benz markets the CLS-Class as a “coupe.” However, traditionally, the term “coupe” denotes vehicles with two doors. Therefore, we classify the CLS as a sedan – albeit a strikingly sleek and attractive one. This semantic maneuver by Mercedes-Benz appears to emphasize that “coupe” is more of a design philosophy than a strict physical description. The core concept behind the 2006 Mercedes-Benz CLS500 is to merge the sporty aesthetics of a coupe with the everyday usability of a sedan. By positioning it as a four-door “coupe,” Mercedes-Benz aims to carve a unique niche within the increasingly competitive luxury car market. This strategy, however, inevitably invites comparisons and competition from a broader spectrum of exceptional vehicles. The 2006 Benz CLS500 faces competition from two fronts. Its rakish styling pits it against charismatic luxury coupes. Owners and potential buyers of two-seaters like Mercedes-Benz’s own SL500, and coupes with less practical rear seats like the Jaguar XK8, might find the CLS a compelling alternative. Yet, regardless of Mercedes-Benz’s marketing intentions, the CLS will primarily be evaluated against other high-end sports sedans. In this category, populated by contenders like the BMW 545i and Lexus GS 430, the 2006 CLS500 faces a challenge in attracting buyers away from some of the most refined and luxurious performance-oriented four-doors currently available.
Striking Design: Inside and Out
The 2006 Mercedes-Benz CLS500 prioritizes its captivating design above even its luxurious features and advanced technology. Its styling is visually appealing from nearly every angle, conveying a sense of motion even when stationary. This dynamic appearance is largely attributed to its sweeping roofline, pronounced wedge shape, and boldly sculpted side panels. The extended length, prominent grille, steeply angled windshield, and blacked-out window frames, creating the illusion of a continuous glass surface, further enhance its powerful presence, accentuated by 18-inch wheels and subtle fender flares. Opening the driver’s door reveals a cabin that feels as intimate and sporty as a two-seater, thanks to the low roofline and a wide center console that extends throughout the interior. As expected in a premium vehicle, the interior is adorned with high-quality materials, including extensive leather upholstery and a choice of matte-finished burl walnut or high-gloss laurel wood trim.
Comfort and Practicality: A Mixed Bag
Front occupants in the 2006 Benz CLS500 enjoy ample comfort, but rear passengers encounter limited legroom and headroom. Visibility is also compromised, and interior storage is minimal. Sliding into the driver’s seat of the 2006 Mercedes-Benz CLS 500, you’ll find comparable head and legroom to the E500. Comfortable 10-way power-adjustable bucket seats and a power-adjustable tilt/telescoping steering column facilitate finding an optimal driving position. A three-position memory function for both front seats allows personalized setting recall. While front space is generous, the CLS500’s rear two-seat configuration sacrifices significant headroom (1.5 inches) and legroom (7.5 inches) compared to the E500 sedan. This poses challenges for taller individuals, and even those of average height must be mindful of head contact with the doorframe when entering and exiting. The stylish low-profile windows and thick C-pillars, while aesthetically pleasing externally, restrict interior visibility. Adding to this are relatively small exterior mirrors that we found challenging to adjust for an ideal view. Despite the prevalence of mobile phones and devices, interior storage is limited to two small covered compartments in the center console – one for front and rear occupants – and shallow door map pockets. The trunk fares better, offering a respectable 15.8 cubic feet of cargo capacity with a refined finish. Our test vehicle’s optional power trunk closer simplified lid operation with a button press.
Engine and Performance: Under the Hood
Beneath the hood of the 2006 Mercedes-Benz CLS500 lies a superb engine: a 302-horsepower, 5.0-liter V8 delivering potent acceleration. Power is channeled to the rear wheels in classic sports sedan fashion through an excellent seven-speed automatic transmission. The 2006 Benz CLS500 shares its gem of an engine with the E500 sedan – a refined 302-horsepower, 5.0-liter V8. This powerplant provides ample acceleration, generating 339 lb.-ft. of torque across a broad powerband from 2,700 to 4,250 rpm. Coupled with relatively low emissions and a pleasingly tuned exhaust note, it’s more than sufficient for most drivers. Power is delivered to the rear wheels via a sophisticated seven-speed automatic transmission, embodying true sports sedan characteristics. This efficient unit maximizes the engine’s wide powerband and includes a Sportronic manual shift feature, enabling gear changes via console-mounted lever movements. Selectable Comfort and Sport modes allow customization of transmission shift patterns to driver preferences. A drawback of this powertrain, typical of high-end vehicles, is its requirement for premium fuel. Our test 2006 CLS500 achieved 15.5 miles per gallon in mixed driving, slightly below EPA estimates of 16 city/22 highway mpg. With a 21-gallon fuel tank, the CLS500 offers a range of approximately 325 miles between refueling.
Driving Dynamics: Road Test Impressions
The primary imperfection in the otherwise exceptional powertrain becomes apparent upon acceleration. A slight hesitation impedes progressive brake pedal response, making smooth stops challenging. When accelerating the 2006 Mercedes-Benz CLS500, the robust V8 delivers impressive power, easily validating the manufacturer’s claimed six-second 0-to-60 mph time. The Sportronic transmission’s adept gear selection, even in full automatic mode, contributes to this performance. However, the most significant flaw in this otherwise ideal powertrain emerges upon initial acceleration. A momentary hesitation prompts increased throttle input, resulting in a surge of acceleration. While this characteristic is common in vehicles utilizing electronic “drive-by-wire” systems, replacing mechanical linkages, it can become a notable annoyance over time. Once in motion, the 2006 Benz CLS500’s standard electronically controlled air suspension continuously adjusts ride height, damping, and spring rates to adapt to driving and road conditions. The suspension also features a console-mounted button for cycling through Comfort, Sport 1, and Sport 2 settings, allowing drivers to fine-tune the ride/handling balance for various driving scenarios, from comfortable highway cruising to spirited driving on winding roads. A self-leveling feature compensates for heavy loads, and a separate button raises the body by an inch for rough terrain. The speed-sensitive rack-and-pinion power steering, shared with the E500, provides precise and progressive control. However, driving enthusiasts might desire more steering weight. Braking is handled by large four-wheel discs – 13-inch front and 11.8-inch rear units – providing rapid deceleration. Advanced braking technology, including four-wheel ABS with electronic brake-force distribution and electronic brake assist, enhances control during hard stops. Yet, similar to the acceleration issue, electronic system quirks affect braking. A slight surge prevents progressive brake pedal response, hindering smooth stops. While seemingly minor, these issues are more pronounced given the car’s overall sophistication and premium price point.
Safety Features: A Mercedes-Benz Standard
Given Mercedes-Benz’s pioneering history in occupant protection, it’s unsurprising that the 2006 Mercedes-Benz CLS500 boasts an extensive array of standard safety features. Mercedes-Benz’s legacy of safety innovation ensures the 2006 Benz CLS500 comes equipped with a comprehensive suite of standard safety technologies. Key features include electronic stability control, traction control, and antilock brakes with Brake Assist for maximum braking force in emergency situations. In the event of a collision, the CLS features advanced multi-stage front airbags, along with front and rear side-impact and side-curtain airbags for enhanced chest and head protection in side impacts. Mercedes-Benz’s TeleAid system, utilizing GPS and including one year of complimentary service, can automatically transmit the vehicle’s location to emergency services in severe accidents that trigger airbag deployment.
Value Proposition: Is the CLS500 Worth It?
The CLS-Class represents a significant financial investment, placing it in competition with a wide selection of attractive, luxurious, and powerful coupes or sedans. Our 2006 Mercedes-Benz CLS500 test car arrived in granite gray metallic paint with a new scratch-resistant clear topcoat. Standard luxury amenities are comprehensive, including four-zone automatic climate control, auto-dimming mirrors, integrated garage door opener, power sunroof, and more. Beyond the base price of $66,920 (inclusive of destination/delivery fees and a gas guzzler tax), our test car included $5,380 in options. These included the Lighting Package with xenon active headlights, the Premium Package (ventilated and heated front seats, DVD navigation, power rear sunshade, Harman Kardon audio system), and a power trunk closer, bringing the total to a sobering $72,300. This substantial sum opens access to a wide range of compelling new coupes and sedans, making the CLS500’s value proposition a highly personal consideration.
Final Verdict and Specifications
Ultimately, like many style-focused vehicles, the CLS prioritizes aesthetic appeal over ultimate practicality. However, for buyers seeking a head-turning vehicle while still accommodating occasional passengers or clients, the 2006 Mercedes-Benz CLS500’s distinctive package may outweigh its minor compromises.
Specifications: 2006 Mercedes-Benz CLS500
- Price of Test Vehicle: $72,300 (including $720 destination charge)
- Engine Size and Type: 5.0-liter V8
- Engine Horsepower: 302 at 5,600 rpm
- Engine Torque: 339 lb-ft between 2,700 and 4,250 rpm
- Transmission: Seven-speed Sportronic automatic
- Curb weight: 3,812 lbs.
- EPA Fuel Economy (city/highway): 16/22 mpg
- Observed Fuel Economy: 15.5 mpg
- Length: 193.3 inches
- Width: 73.7 inches
- Wheelbase: 112.4 inches
- Height: 55.2 inches
- Leg room (front/rear): 42.1/28.1 inches
- Head room (front/rear): 36.9/36.1 inches
- Max. Seating Capacity: 4
- Max. Cargo Volume: 15.8 cubic feet
- Competitors: Audi A6 4.2, BMW 545i, BMW 645Ci, Cadillac STS V8, Cadillac STS-V, Chrysler 300C SRT-8, Dodge Charger SRT-8, Ford Mustang Shelby Cobra GT500, Infiniti M45, Jaguar S-Type 4.2, Jaguar S-Type R, Lexus GS 430, Lexus SC 430, Porsche 911 Carrera, Saleen S281-E
Photos courtesy of Mercedes-Benz
