2011 Hyundai Sonata Hybrid Road Test Specs | Edmunds

2011 Hyundai Sonata Hybrid - Road Test Specs

2011 Hyundai Sonata Hybrid Sedan

(2.4L 4-cyl. Hybrid 6-speed Automatic)


Year Make Model2011 Hyundai Sonata Hybrid 4dr Sedan (2.4L 4cyl gas/electric hybrid 6A)
Vehicle TypeFWD 5-passenger sedan
Base MSRP$26,545
Options on test vehicleVenetian Red Pearl paint, Premium Equipment Package ($5,000-Panoramic sunroof with tilt and slide; 17 x 6.5-inch Eco-spoke alloy wheels; Navigation system with high-resolution touch-screen display; Rear backup camera; Infinity premium speakers with subwoofer and 400-watt external amplifier; HD Radio Technology with multicasting; Leather seating surfaces; Heated front seats and rear seat bottom cushions; Leather-wrapped steering wheel and shift knob; Auto-dimming mirror with Homelink and compass; HVAC multi-mode button; Premium door sill plates; Glossy black door surround and outside mirror housing), Carpeted Floor Mats ($100), iPod Cable ($35)
As-tested MSRP$30,930
Assembly locationAsan, Korea
North American parts content (%)2


ConfigurationTransverse, front-engine combined with electric motor(s), front-wheel drive
Engine typeNaturally aspirated, port-injected, Atkinson-cycle inline-4, gasoline
Displacement (cc/cu-in)2,359/144
Block/head materialAluminum/aluminum
ValvetrainDOHC, 4 valves/cylinder variable intake + exhaust-valve timing
Compression ratio (x:1)13.0
Redline, indicated (rpm)None indicated
Fuel cutoff/rev limiter (rpm)Not applicable
Horsepower (hp @ rpm)166 @ 6,000
Torque (lb-ft @ rpm)154 @ 4,500
Fuel type87 octane recommended
Hybrid typeParallel
Electric motor rating (kW)30
Combined horsepower (hp @ rpm)206
Combined torque (lb-ft @ rpm)193
System voltage270
Battery typeLithium-polymer
Battery voltage270
Battery capacity, rated (kW-hr)34
Battery capacity, usable (kW-hr)1.43
Transmission typesix-speed automatic with console shifter with manual-shift gate
Transmission ratios (x:1)1st = 4.212; 2nd = 2.637; 3rd = 1.800; 4th = 1.386; 5th = 1.000; 6th = 0.772
Final-drive ratio (x:1)3.320


Suspension, frontIndependent MacPherson struts, coil springs, twin-tube dampers, stabilizer bar
Suspension, rearIndependent multilink, coil springs, twin-tube dampers, stabilizer bar
Steering typeElectric-assist, speed-proportional, rack-and-pinion power steering
Steering ratio (x:1)15.3
Tire make and modelKumho Solus KH25
Tire typeAll-season, low-rolling resistance (34 psi cold front; 34 psi cold rear)
Tire sizeP215/55R17 (93V)
Wheel size17-by-7.5 inches
Wheel materialCast aluminum
Brakes, front11.8-in one-piece ventilated cast-iron discs with 1-piston sliding calipers
Brakes, rear11.2-in one-piece ventilated cast-iron discs with 1-piston sliding calipers

Track Test Results

Acceleration, 0-30 mph (sec.)3.4
0-45 mph (sec.)5.7
0-60 mph (sec.)8.7
0-75 mph (sec.)12.3
1/4-mile (sec. @ mph)16.3 @ 87.7
0-60 with 1 foot of rollout (sec.)8.2
0-30 mph, trac ON (sec.)3.6
0-45 mph, trac ON (sec.)6.0
0-60 mph, trac ON (sec.)9.3
0-75 mph, trac ON (sec.)13.3
1/4-mile, trac ON (sec. @ mph)16.8 @ 85.3
0-60, trac ON with 1 foot of rollout (sec.)8.9
Braking, 30-0 mph (ft.)31
60-0 mph (ft.)126
Slalom, 6 x 100 ft. (mph)62.2
Slalom, 6 x 100 ft. (mph) ESC ON60.7
Skid pad, 200-ft. diameter (lateral g)0.77
Skid pad, 200-ft. diameter (lateral g) ESC ON0.77
Sound level @ idle (dB)37.7
@ Full throttle (dB)77.5
@ 70 mph cruise (dB)63.0
Engine speed @ 70 mph (rpm)Not available

Test Driver Ratings & Comments

Acceleration commentsVery, very smooth (and not that slow) getaway from a complete stop in EV mode, then a short plateau in acceleration as the engine comes to life at about 10 mph. Gear changes are also quite smooth. With pedal overlap, the car left the line under blended power and cut between 0.2 and 1.0 seconds from its time at speed. No measurable loss of performance with decreased battery level from run to run.
Braking commentsInitial braking delay after standing on the brake pedal as if the car was deciding between regenerative braking or mechanical braking. Thereafter, however, typical slowing without any indication that this is anything other than an ordinary Sonata (i.e., no heavy caboose or rear-end wiggle or wander).
Handling commentsSkidpad: Steady, gentle understeer regardless of ESC on/off. Steering is obviously, painfully electrically assisted as it feels springy and artificially loaded. No obvious weight imbalance from battery pack and feels more or less neutral. Slalom: With ESC off, I was a little surprised to discover a nice ability to rotate off-throttle, but too much of a good thing can get silly (and slow). Best run was the result of going in a little slower than what's possible and progressively adding throttle until at WOT at cone 5 of 6 -- just like a Porsche 911, but about 10 mph slower. Steering is still lifeless but reasonably precise. ESC on was very impressive with only minor corrections at each cone, and it quickly returned control to the driver without throwing the proverbial boat anchor at the first sign of aggressive driving.

Testing Conditions

Test date5/24/2011
Test locationCalifornia Speedway
Elevation (ft.)1,121
Temperature (°F)62.75
Relative humidity (%)50.44
Barometric pressure (in. Hg)28.90
Wind (mph, direction)5.9 headwind
Odometer (mi.)3,625
Fuel used for test87 octane gasoline
As-tested tire pressures, f/r (psi)34/34

Fuel Consumption

EPA fuel economy (mpg)35 city/40 highway/37 combined
Edmunds observed (mpg)23 worst/34 best/31 average (over 1,161 miles)
Fuel tank capacity (U.S. gal.)17.2
Driving range (mi.)636

Audio and Advanced Technology

Stereo descriptionMobis HD-capable AM/FM/XM/6-disc CD changer/MP3 audio system with 9 Infinity speakers, subwoofer and external Infinity 400-watt amplifier
iPod/digital media compatibilityOptional iPod via proprietary cable
Satellite radioStandard XM with 90-day free trial
Hard-drive music storage capacity (Gb)Not available
Rear seat video and entertainmentNot available
Bluetooth phone connectivityStandard
Navigation systemOptional flash-based with XM traffic
Telematics (OnStar, etc.)Not available
Smart entry/StartStandard ignition doors
Parking aidsOptional back-up camera
Blind-spot detectionNot available
Adaptive cruise controlNot available
Lane-departure monitoringNot available
Collision warning/avoidanceNot available
Night VisionNot available
Driver coaching displayStandard

Dimensions & Capacities

Curb weight, mfr. claim (lbs.)3,483
Curb weight, as tested (lbs.)3,623
Weight distribution, as tested, f/r (%)60/40
Length (in.)189.8
Width (in.)72.2
Height (in.)57.7
Wheelbase (in.)110.0
Track, front (in.)62.6
Track, rear (in.)62.6
Turning circle (ft.)35.8
Legroom, front (in.)45.5
Legroom, rear (in.)34.6
Headroom, front (in.)40.0
Headroom, rear (in.)37.8
Shoulder room, front (in.)57.9
Shoulder room, rear (in.)56.7
Seating capacity5
Step-in height, measured (in.)14.06
Trunk volume (cu-ft)10.7
Cargo loading height, measured (in.)29.25


Bumper-to-bumper5 years / 60,000 miles
Powertrain10 years / 100,000 miles
Corrosion7 years / Unlimited miles
Roadside assistance5 years / Unlimited miles
Free scheduled maintenanceNot Available
Hybrid/battery10 years / 100,000 miles (includes battery pack, hybrid starter-generator, transmission, and traction motor)

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