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Full Test: 2008 Dodge Challenger SRT8

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    Watch the 2008 Dodge Challenger SRT-8 Road Test Video on Edmunds' Inside Line | September 23, 2009

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Road Test

Full Test: 2008 Dodge Challenger SRT8

World's First Test of Dodge's Newest Muscle Car

    0 Ratings
    The 2008 Dodge Challenger SRT8 is a muscle car, right? An American muscle car. So naturally, the first thing I want to do when I jump behind the wheel is a big American smoky burnout.

    "Not here," says Pete Gladysz, the Dodge guy babysitting our test car and riding shotgun, as he looks around the leafy, tranquil residential street we're on in the middle of Pasadena. "Wait 'till we get to the track."

    Gladysz, powertrain senior manager for Chrysler LLC's SRT Group, sounds serious. So I wait.

    Carving up Mountain Roads
    Instead of the burnout, I carve our way up into the mountains east of Los Angeles on the Angeles Forest Highway, a tortuous two-lane road that cuts and weaves its way northeast toward Willow Springs International Raceway. It's a road custom-made to test the new Challenger's handling mettle.

    The 2008 Dodge Challenger SRT8 is no rapier of a pony car, and it even makes its iconic 1970 inspirational predecessor, which I road-tested many times back in the day, seem compact. Instead, this new 2008 Dodge Challenger is more like a broadsword, a big brute of a car weighing 4,152 pounds.

    Remember, the new Dodge Challenger is really a Dodge Charger sedan underneath with a scant 4 inches chopped out of the wheelbase. But Dodge tuned the suspension to be more compliant this time around. Softer than the suspension on the Charger SRT8 we tested a few months ago.

    According to Gladysz, the engineering team realized it was unnecessary to tune the suspension so uncomfortably stiff to get this rear-wheel-drive platform to handle.

    A Big Brute
    With all that bulk and its softer shock tuning, I frankly don't expect much in the handling department. Like that Charger, around town the Challenger is a big, heavy, ponderous car, a feeling amplified by its heavily bolstered, leather-upholstered bucket seats and the greenhouse of mail-slot-size windows.

    But the harder I push the Challenger on the endless curves of the Angeles Forest Highway, the lighter on its feet it gets. This car belies its nose-heavy 54 percent front/46 percent rear weight distribution with a neutral feel right up to the point where the electronic stability program (ESP) starts to activate.

    In fact, the ESP is programmed to let you play a little with oversteer if you want to balance weight transfer with throttle in tight corners. And in broader sweeping turns, you can actually hang the rear end out a little before the ESP selectively applies braking and modulates throttle input to save you from yourself.

    Later, at the test track negotiating our 600-foot slalom, the Challenger's capabilities once again became obvious on the first flat, controlled pass. From then on, it's only a matter of finding the quick way through the cones. Our testers note a quite neutral balance despite being a little vague on turn-in, but the short suspension travel helps transitions from left to right.

    At the Test Track
    When it's all over, the big 2008 Dodge Challenger SRT8 records a fine 66.2 mph through the slalom. On the skid pad, its mild understeer on the limit transitions to gentle lift-throttle oversteer, which translates into nice 0.86g lateral acceleration.

    Likewise, the Challenger excelled in our braking tests, recording 60-to-0-mph in just 115 feet. Its Brembos provide a firm pedal with excellent feel, very little ABS noise and no fade whatsoever throughout the test. Brake dive is also kept in check.

    No doubt contributing to the Challenger's fine handling and braking are the optional 245/45ZR20 front and 255/45ZR20 rear Goodyear F1 Supercar Performance three-season tires. Standard are 245/45ZR20 Goodyear RS-A all-season tires all around.

    A Citation Makes History
    Of course, with 425 horsepower at 6,200 rpm and 420 pound-feet of torque at 4,800 rpm thumping out of the 6.1-liter Hemi engine, you can do just about anything you want with this car, including passing anything on the road — except the radar unit of a California Highway Patrol officer.

    Once off the Angeles Forest Highway and onto the 14 freeway, I open it up to test the Challenger's over-the-road passing ability. Our orange-on-black rocket is up for it, too. At 85 mph I punch it. The five-speed automatic kicks down, the acceleration pins us back in the seat and the Challenger blasts forward. This thing definitely has game.

    As we approach our exit to Willow Springs, I put the turn signal on and move to the right lane. At that moment, also going on are the rooftop lights of Officer Edward Smith's Ford Crown Victoria Police Interceptor. He hits the gumballs and makes a hard left across the median, spewing grass and dirt into a huge rooster tail behind him, then pulls another hard left onto the northbound pavement, rear tires blazing. Nice driving, Officer Smith. He catches us as we stop at the top of the exit ramp.

    Officer Smith, out of the California Highway Patrol's Mohave barracks, writes us up for "excess of 100 mph." This may be the first speeding ticket written for a 2008 Dodge Challenger in the entire USA. At least that's what I'll tell my grandchildren.

    After this episode, I do not test SRT's claim of a top speed of 170 mph for the Challenger. By the way, the car has no electronic speed limitation. The 170 figure is a "natural" top speed, according to SRT engineers.

    Just Stomp and Steer
    Our test car is a rocket ship on the drag strip, too, recording a quarter-mile of 13.2 seconds at 107.5 mph — ironically, nearly identical to the runs I once made in an original Hemi Challenger in 1970. The new car's 0-60-mph time of 5.1 seconds (4.8 seconds with 1 foot of rollout like on a drag strip) is right on, compared to factory claims.

    An interesting fact not to be overlooked is the quarter-mile trap speed of this car. Both the 1970 426-cubic-inch Hemi and the 2008 370-cubic-inch Hemi are rated at 425 hp. But the '08 car is 647 pounds heavier. As the quarter-mile speeds of these cars are almost purely a function of horsepower-to-weight ratio, you have to wonder which horsepower rating is fiction.

    Best acceleration runs result from merely stomping the throttle to the floor from idle with ESP off. No brake torque at all. With the 3.06:1 rear axle ratio and 3.58 1st gear in the five-speed automatic, the car produces textbook-perfect, bog-free, wheelspin-free launches. Manual upshifts with the console-mounted Autostick are blazingly fast, or the transmission does it for you right at the 6,200-rpm redline.

    Of course this kind of yank costs. The EPA rates the 2008 Dodge Challenger SRT8 at 13 mpg city/18 mpg highway, which is thirsty enough to slap the car with a $2,100 gas-guzzler tax (which we've included in its base price). During our 10 days and 2,000 miles with the car we averaged 14.5 mpg.

    Tricky Business
    And yes, we finally do some burnouts in the Willow Springs area. Doing a burnout in this car is somewhat tricky. You can't just mash on the brake with your left foot, feed throttle with your right until the tires start spinning, then floor it and go. That worked in the original '70 Challenger. Forget about it in 2008. The culprit is modern technology.

    But you can do it. First you have to shut off the ESP, which itself is a two-step process. Hit the dash button once and you get a "soft" shut-off, which means it's still kind of on. Then hold the button for 5 seconds and it's off — kind of. Yes, it's off but it will still intervene in certain circumstances.

    For 2010, the federal government has mandated certain ESP interventions on all cars regardless of whether the system is off or on. Since the engineers were designing a new system for this car anyway, they dialed in the compliance for the 2010 regs. So for instance, if you mash on the brake pedal with your left foot and open the throttle with your right foot at a steady setting for 2 seconds or longer, the ESP computer interprets that as the car being "in distress" and shuts down the engine.

    Big Brother Takes the Wheel
    To do a really major burnout, you have to trick the electronic brain and slightly modulate your foot on the brake as you spin up the rear tires. (Modulating the throttle doesn't work as well.) The computer interprets this modulation as the driver having fun, and it's actually programmed to allow for fun. Then you'll have your burnout.

    By the way, when you release the brake, don't let the revs hit the rev limiter at 6,200 rpm or the computer will shut down the engine, shift you into 2nd gear, then give you back control.

    It's all a bit tricky but once you get the hang of it, you can smoke the tires at will and look like a NASCAR hero after a big win.

    The Real Deal
    The 2008 Dodge Challenger SRT8 will be the talk of the town for the next few months, as well it should be. Available in Hemi Orange, Bright Silver Metallic or Brilliant Black, it looks, feels and sounds like a muscle car. It's got one of the sweetest exhaust notes you'll hear this side of a Flowmaster muffler. And they're only building 6,400 examples before they move on to lesser-powered versions.

    Of those, 4,000 are already sold. With all the standard leather inside and all kinds of high-tech stuff in the instrument panel, it's something of a performance bargain at its $40,095 base price.

    It's a true muscle car in every sense of the word.

    The manufacturer provided Edmunds this vehicle for the purposes of evaluation.

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    Speed Read

    Featured Specs

    • 425-hp Hemi V8
    • 5-speed automatic transmission
    • 0-60 mph in 5.1 seconds
    • 20-inch wheels and tires

    What Works

    Quick, comfortable and surprisingly agile; hey look, a usable rear seat; just plain cool.

    What Needs Work

    Too big; too heavy; too many people ask you if it's the new Camaro.

    Tags

    Specs & Performance

    Vehicle
    MakeDodge
    ModelChallenger
    Model year2008
    StyleSRT8 2dr Coupe (6.1L 8cyl 5A)
    Base MSRP40,095
    As-tested MSRP40,145
    Options on test vehicleGoodyear Eagle F1 Supercar Performance Tires
    Drive typeRear-wheel drive
    Transmission type5-speed automatic
    Transmission and axle ratios (x:1)'I = 3.59, II = 2.19, III = 1.41, IV - 1.00, V = 0.83, FD = 3.06, R = 3.16
    Engine type90-degree V8
    Displacement (cc/cu-in)6,059cc (370 cu-in)
    Block/head materialCast iron/aluminum
    ValvetrainOHV, 2 valves per cylinder
    Compression ratio (x:1)10.3
    Redline (rpm)6,400
    Horsepower (hp @ rpm)425 @ 6,200
    Torque (lb-ft @ rpm)420 @ 4,800
    Brakes, front14.2-inch ventilated disc, 4-piston fixed calipers
    Brakes, rear13.8-inch ventilated disc, 4-piston fixed calipers
    Steering typeSpeed-sensitive, hydraulic-assist, rack-and-pinion power steering
    Steering ratio (x:1)16.1:1
    Suspension, frontIndependent, double wishbones, coil springs and stabilizer bar
    Suspension, rearIndependent, multilink, coil springs and stabilizer bar
    Tire size, front245/45ZR20 99Y
    Tire size, rear255/45ZR20 101Y
    Tire brandGoodyear
    Tire modelEagle F1 Supercar
    Tire type3-season performance
    Wheel size20 by 9.0 front, 20 by 9.0 rear
    Wheel materialForged aluminum
    Curb weight, mfr. claim (lbs.)4,140
    Curb weight, as-tested (lbs.)4,154
    Weight distribution, F/R (%)54/46
    Fuel typePremium unleaded (recommended)
    Fuel tank capacity (gal)19.0
    EPA fuel economy (mpg)13 city/18 highway
    Edmunds observed (mpg)14.5 Combined average (16.5 best, 11.5 worst)
    Conditions for Testing
    Temperature (°F)64
    Elevation (ft.)1121
    Wind (mph, direction)0
    Performance
    0 - 30 (sec.)2.3
    0 - 45 (sec.)3.4
    0 - 60 (sec.)5.1
    0 - 75 (sec.)6.9
    1/4 mile (sec. @ mph)13.2 @ 107.5
    0-60 with 1-ft rollout (sec.)4.8
    30 - 0 (ft.)29
    60 - 0 (ft.)115
    Braking ratingExcellent
    Slalom, 6 x 100 ft (mph)66.2
    Skid pad, 200 ft diameter (lateral g)0.86
    Handling ratingVery good
    Sound level @ idle (db)48.2
    Sound level @ full throttle (db)82.7
    Sound level @ 70 mph cruise (db)71.1
    Acceleration commentsWith ESP and traction control disabled, the quickest launch was the result of simply whacking the throttle to the firewall -- no brake torque. Just the right combination of gear ratios, available torque and tire slip produced a textbook-perfect bog- and spin-free launch. Upshifts are blazingly fast with a built-in burp between gears. Gearing and power delivery are very well matched. Exhaust is almost too muted inside the car.
    Braking commentsFirm pedal with excellent feel. Virtually no dive, little ABS noise, and zero fade from first to last stop.
    Handling commentsSlalom: Given its size, I was initially apprehensive to throw the Challenger around, but its capabilities became immediately obvious after the first flat and controlled slalom pass. From then on, it was only a matter of coming to terms with finding the widely spaced corners of the car. Steering wheel feels about 2 inches too large, but offers a decent balance between effort and precision. Road feel is a little vague, as is turn-in. Balance is quite neutral and short-travel suspension helps it transition surprisingly well. Skid pad: Mild understeer on the limit that turns into gentle lift-throttle oversteer. Nice. Steering doesn't seem to load much.
    Specifications
    Length (in.)197.7
    Width (in.)75.7
    Height (in.)57.1
    Wheelbase (in.)116.0
    Front Track (in.)63.0
    Rear Track (in.)63.1
    Turning circle (ft)38.9
    Legroom, front (in.)42.0
    Legroom, rear (in.)32.6
    Headroom, front (in.)39.3
    Headroom, rear (in.)37.4
    Shoulder room, front (in.)58.2
    Shoulder room, rear (in.)53.9
    Seating capacity5
    Cargo volume (cu-ft)16.2
    Max. cargo volume, seats folded (cu-ft)Standard 60/40 split fold (volume not specified)
    Warranty Information
    Bumper-to-bumper3 years/36,000 miles
    Powertrain3 years/36,000 miles
    Corrosion5 years/100,000 miles
    Roadside assistance3 years/36,000 miles
    Scheduled maintenanceNot Available
    Safety Information
    Front airbagsStandard
    Side airbagsNot available
    Head airbagsStandard front and rear
    Knee airbagsNot available
    Antilock brakes4-wheel ABS
    Electronic brake enhancementsBraking assist, electronic brakeforce distribution
    Traction controlStandard
    Stability controlStandard
    Rollover protectionNot Available
    Tire-pressure monitoring systemStandard tire pressure monitoring with 4-corner readout
    Emergency assistance systemNot Available
    NHTSA crash test, driverNot Tested
    NHTSA crash test, passengerNot Tested
    NHTSA crash test, side frontNot Tested
    NHTSA crash test, side rearNot Tested
    NHTSA rollover resistanceNot Tested
    CollapseSpecs and Performance Expand Collapse

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