- Overview
- Technical Specifications
- General Information
- Location
The C450 introduces the new C-class with the 329-hp twin-turbo V-6 that Mercedes will use in a host of other upcoming vehicles to give the power of a V-8 but with fewer jugs. Forget the 400 nomenclature; this engine is 2996 cc, and it feels every bit down the two cylinders until the boost comes on. Benz’s engineers have done all they can to shorten the wait, but it’s still possible to catch the engine napping in awkward situations, such as when diving into a lane of fast-flowing traffic.
Once the pressure is up, the C450’s distant rising rumble suggests precision parts in a kinetic frenzy. A slight wheeze betrays the presence of spinning turbines, but it’s far more charming than disruptive. And the wee six makes small numbers out of the 60-mph run: 4.7 seconds, which is strong. We liked other numbers, too, from the 13.3-second quarter-mile to the 160-foot fade-free stopping distance. This heavy C hustles.
The just-average 0.88-g skidpad is a byproduct of the 4MATIC’s ability to create understeer. This is not the kind of four-wheel-drive system meant to rally-kick the rear end sideways out of a corner. Rather, it’s an all-weather assistant that generates sales in snowy states without really adding anything to the car’s dry-road handling. As you turn into a corner, you feel the mass resisting a change of direction. The suspension needs a millisecond to roll over and compress, then the turn happens. It’s all fairly quick and, by model-year-2004 standards, a wonder of athletic ability, but it doesn’t raise the blood pressure. We did like the brake feel and always found the pedal response reassuring.
As with Benzes of yore, the C450 thrives best on the interstate with its firm ride, excellent seats, and solid sense of straight ahead. A lot of highway driving at a mere 10 mph over produced a 22-mpg test average, 1 mpg better than the car’s EPA-rated city number. To get the 29-mpg highway rating, we’re thinking you’ll need a steady tailwind.
Welcome practicalities of the C-class design include the split-folding rear seats and an 18-gallon fuel tank, though at 13 cubic feet, the trunk may struggle to hold all the suitcases of four passengers.
Reminders that you’re not actually in an S-class: the distinct thrum invading the otherwise quiet cabin as the tires roll over coarse pavement, and foot boxes that are small enough that your knees bump against the door and console. Here and there you find some hard plastic. In the back, passengers get good knee and head clearance but limited footroom, and the two rear-facing air vents in the center armrest proved inadequate on a hot day.
Shades of the S-class include an interior well decorated with silvery jewels and detailed down to the millimeter with fine lines of stitching; swaths of warm, textured black ash wood; and thin filaments of brightwork. A Burmester sound system comes standard in this model and is worth it just for the fabulous speaker shower heads. Option packages bring in most of the other notable finery, such as the interior package that includes leather upholstery, power for the front-passenger seat, illuminated doorsills, and splashes of mood lighting.
To the COMAND system’s central superknob, Benz adds a sort of mouse/touchpad on top meant to ease your passage through the system’s menus and infotainment choices. It will take you some time with a patient salesperson plus a close reading of the 20-page section of the owner’s manual on this device before full familiarity sets in. In the meantime, you may wonder why the radio station changed when you reached for your latte, or why the nav is suddenly showing you Pismo Beach.
A Driver Assistance package brings in a bunch of safety items, some detestable—such as lane-keeping assist, which buzzes the steering wheel when you approach lane lines. The AIRMATIC air suspension lets you set the car’s aggression level with an “Agility” switch. The choices are typical: eco, comfort, sport, and sport plus. Sport dials up the right suspension and shift-map settings for eager driving but locks out top gear unless you take manual control. So you must needlessly waste fuel if you just want the car to feel a little firmer.
Lavishly trimmed and optioned, this prince of all Cs looks racier in its AMG-inspired clothes than it feels, but we’re not dinging it for that. The person who buys this C450 isn’t looking for ultimate lateral grip or hand-slicing steering sharpness, but maxi-button luxury in a small package. And at this odd job, the car excels.
Performance Specs
Engine and Transmission
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Engine3.0L Twin-Turbo V6 Gas
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Horsepower329 hp @ 5250 rpm
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Torque354 lb-ft @ 1600 rpm
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Transmission7-Speed Automatic
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DrivetrainAll-Wheel Drive
Steering
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Steering TypeRack-Pinion
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Turning Diameter36.8 ft
Wheels
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Wheels TypeAluminum Wheels
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Front Wheel Size18" x 7.5"
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Rear Wheel Size18" x 8.5"
Suspension
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Front SuspensionStrut
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Rear SuspensionMulti-Link
Tires
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Front TireP225/45HR18
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Rear TireP245/40HR18
Fuel and MPG
Fuel Economy
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Combined24 MPG
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City21 MPG
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Highway29 MPG
Fuel Tank
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Fuel Tank Capacity18 gallons
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Cruising Range City378 miles
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Cruising Range Highway522 miles
Emissions
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CO2 Emissions @ 15K mi/year7.4 (Est) Tons/yr
Dimensions and Measurement
Exterior Dimensions
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Length184.5 in
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Height56.8 in
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Max Width71.3 in
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Front Width61.6 in
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Rear Width60.8 in
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Wheelbase111.8 in
Interior Space
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Seating Capacity5 seater
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Front Seat Leg Room41.7 in
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Front Seat Headroom37.1 in
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Rear Seat Leg Room35.2 in
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Rear Seat Headroom37.1 in
Weight and Towing
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Curb Weight3,693 lbs
Cargo Space
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Tr
Overview |
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Engine Type | Gas |
Transmission | 7-speed shiftable automatic |
Drive Type | All wheel drive |
Cylinders | V6 |
Total Seating | 5 |
Basic Warranty | 4 yr./ 50,000 mi. |
Fuel & MPG | |
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Fuel type | Premium unleaded (required) |
EPA city/highway MPG | 21/29 MPG |
EPA combined MPG | 24 MPG |
Range in miles (city/hwy) | 378.0/522.0 mi. |
Fuel tank capacity | 18.0 gal. |
Engine | |
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Base engine size | 3.0 L |
Cylinders | V6 |
Base engine type | Gas |
Horsepower | 329 hp @ 5,250 rpm |
Torque | 354 lb-ft @ 1,600 rpm |
Valves | 24 |
Cam type | Double overhead cam (DOHC) |
Valve timing | Variable |
Direct injection | yes |
Drivetrain | |
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Transmission | 7-speed shiftable automatic |
Drive type | All wheel drive |
Center limited slip differential | yes |
Suspension | |
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Four-wheel independent suspension | yes |
Front and rear stabilizer bar | yes |
Dimensions | |
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Length | 184.5 in. |
Overall width with mirrors | 79.5 in. |
Overall width without mirrors | 71.3 in. |
Height | 56.8 in. |
Wheelbase | 111.8 in. |
Cargo capacity, all seats in place | 12.6 cu.ft. |
Manufacturer 0-60 mph acceleration time | 5.2 seconds |
Turning circle | 36.8 ft. |
Curb weight | 3,693 lbs. |
Country of final assembly | Germany |
Colors | |
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Exterior Colors |
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Interior Colors |
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Front Seat Dimensions | |
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Front head room | 37.1 in. |
Front leg room | 41.7 in. |
Leatherette | yes |
Bucket front seats | yes |
10-way power driver seat | yes |
Height adjustable driver seat | yes |
Driver seat with power adjustable lumbar support | yes |
3 memorized driver seat settings | yes |
4-way manual passenger seat adjustment | yes |
Multi-level heating driver seat | yes |
Multi-level heating passenger seat | yes |
Rear Seat Dimensions | |
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Rear head room | 37.1 in. |
Rear leg room | 35.2 in. |
Split-folding rear seatback | yes |
Safety | |
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Pre-collision safety system | yes |
Dual front side-mounted airbags | yes |
Front and rear head airbags | yes |
Passenger airbag occupant sensing deactivation | yes |
Stability control | yes |
Traction control | yes |
Child seat anchors | yes |
Rear door child safety locks | yes |
4-wheel ABS | yes |
Brake drying | yes |
Front and rear ventilated disc brakes | yes |
Emergency braking preparation | yes |
Emergency braking assist | yes |
Tire pressure monitoring | yes |
Dusk sensing headlamps | yes |
Auto delay off headlamps | yes |
Daytime running lights | yes |
Turn signal mirrors | yes |
2 front headrests | yes |
Front height adjustable headrests | yes |
3 rear headrests | yes |
Rear height adjustable headrests | yes |
Rear center 3-point belt | yes |
Remote anti-theft alarm system | yes |
Engine immobilizer | yes |
In-Car Entertainment | |
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AM/FM stereo | yes |
Burmester premium brand stereo system | yes |
Burmester premium brand speakers | yes |
590 watts stereo output | yes |
13 total speakers | yes |
USB connection | yes |
Auxiliary audio input and USB with external media control | yes |
Memory card slot | yes |
Satellite radio satellite radio | yes |
6 months of provided satellite radio service | yes |
Power Feature | |
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4 one-touch power windows | yes |
Hands-free entry | yes |
Heated mirrors | yes |
Comfort & Convenience | |
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Keyless ignition | yes |
Tilt and telescopic steering wheel | yes |
Transmission, cruise and audio controls on steering wheel | yes |
Electric power steering | yes |
Cruise control | yes |
Universal remote transmitter (for garage door, security system, etc.) | yes |
Front and rear cupholders | yes |
Front and rear door pockets | yes |
Front seatback storage | yes |
Leather steering wheel | yes |
Dual zone front climate control | yes |
Rear ventilation ducts | yes |
Interior air filtration | yes |
Dual illuminating vanity mirrors | yes |
Electrochromatic inside rearview mirror | yes |
Turn signal in mirrors | yes |
Instrumentation | |
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Trip computer | yes |
External temperature display | yes |
Tachometer | yes |
Clock | yes |
Tires & Wheels | |
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Alloy wheels | yes |
18 x 8.5 in. wheels | yes |
All season tires | yes |
245/40R18 tires | yes |
Telematics | |
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Emergency Service | yes |
Airbag Deployment Notification | yes |
Vehicle Alarm notification | yes |
Stolen Vehicle Tracking/Assistance | yes |
Roadside Assistance | yes |
Concierge Service | yes |
Destination guidance (also Turn-by-Turn Navigation) | yes |
Destination Download |