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2005 Pontiac Grand Prix Full Review
Date Published: 2/20/08
2005 Pontiac Grand Prix Review
Standard OnStar assistance, optional remote starting, and midyear introduction of a V8 model are among 2005 Grand Prix highlights. Base and GT models have a 200-hp V6. The GTP has a 260-hp supercharged V6. The new-for-'05 GXP has a 303-hp V8. The V8 has GM's Displacement on Demand system, which deactivates four cylinders under light throttle conditions to save fuel. A 4-speed automatic is Grand Prix's sole transmission. Steering-wheel paddles for manual shifting--Pontiac's TAPshift feature--are standard on GXP. TAPshift is available on GTPs as part of the Sport Package. An antiskid system is also part of the Sport Package and is standard on GXP. All models have 4-wheel disc brakes. ABS and traction control are optional for the base Grand Prix, standard otherwise. Base and GT have 16-inch wheels, the GTP has 17s, the GXP has 18s and uprated brakes. Head-protecting curtain side airbags are available for all but the base; torso side airbags are not offered. The remote starting system operates from the keyfob and is joined as a new option by a navigation system. A CD/MP3 stereo is also newly available, and all models gain rear-seat cupholders as well as standard OnStar. Satellite radio and a head-up instrument display are also optional.
Competition
Consumer Guide® Automotive places each vehicle into one of 17 classes based on size, price, and market position. Midsize Cars represent the heart of the U.S. car market. Most are price-sensitive, conservatively designed, family oriented sedans and wagons.

Our Best Buys include the Honda Accord and Toyota Camry. Our Recommended picks include the Chevrolet Malibu, Hyundai Sonata, Kia Optima, Mazda 6, Nissan Altima, and Subaru Outback and Legacy.
News
Grand Prix's next redesign isn't slated until at least model-year 2008, say our sources, but that's all they have to say at the moment.
2005 Pontiac Grand Prix Road Test
Pros Cons
Acceleration (GTP) Rear-seat comfort
Steering/handling
Interior storage space
Consumer Guide® Road Test Ratings
Acceleration

GT GTP w/Sport Package GXP Class Average
6 7 7 5.3

Base V6 provides plenty of power for everyday use. Supercharged version is muscular: Pontiac claims 6.5 sec 0-60 mph. GXP feels stronger still. Smooth transmission kicks down quickly for passing. TAPshift's paddles hard to reach, but provide prompt upshifts and downshifts, afford more manual control than most such systems.
Fuel Economy

GT GTP w/Sport Package GXP Class Average
5 4 4 5.2

Test GTP averaged 17.1 mpg in mix of city/highway driving. Expect about 2 mpg better with base V6. No opportunity to measure with GXP. Pontiac recommends premium-grade fuel for GTP and GXP.
Ride Quality

GT GTP w/Sport Package GXP Class Average
7 6 6 6.1

Comfortable on uneven pavement, but can be floaty at highway speeds. GTP and GXP more stable, being firm but not harsh over bumps.
Steering/Handling/Braking

GT GTP w/Sport Package GXP Class Average
7 7 8 6.1

All models composed, balanced. GXP's performance tires help give it sharp moves, good grip in turns. GXP suffers from annoying torque steer--unwanted pulling to one side in brisk acceleration. Steering on all firm and responsive, but wide turning circle hampers close-quarters maneuvering. Brakes on test cars felt numb, spongy, but stopped well.
Quietness

GT GTP w/Sport Package GXP Class Average
7 6 6 6

Wind noise muted. Low-profile tires on GTP/GXP slap on sharp pavement joints, but road rumble otherwise unobtrusive. V6 gruff in full-throttle acceleration; V8 much smoother.
Controls

GT GTP w/Sport Package GXP Class Average
5 5 5 6.6

Large gauges, easy-to-use controls. Unlike many other General Motors cars, wipers get own stalk instead of sharing turn-signal lever.
Room/Comfort/Driver Seating (front)

GT GTP w/Sport Package GXP Class Average
7 7 7 6.3

Ample leg room, but no excess of head room, particularly with sunroof. Good side-bolster support in turns. Some testers say long-trip comfort compromised by too-firm seatbacks. Thick windshield-pillar bases hamper outward vision.
Room/Comfort (rear)

GT GTP w/Sport Package GXP Class Average
3 3 3 4.7

Fair leg room but limited toe space. Seatback uncomfortably hard, and low cushion provides little thigh support. Rear doors open unusually wide, easing entry/exit, but low coupe-style roofline means passengers must duck getting in or out.
Cargo Room

GT GTP w/Sport Package GXP Class Average
5 5 5 4.5

Trunk volume average for class. But available fold-flat front-passenger seat coupled with standard 60/40 split folding rear seatback expands load volume and accommodates objects up to 9.5-ft long. Wide-opening rear doors ease loading bulky items.
Value within Class

GT GTP w/Sport Package GXP Class Average
6 5 5 5.7

It trails our top-rated Honda Accord and Toyota Camry in quality of interior materials, and rear-seat comfort is substandard. But the competitively priced Grand Prix delivers good performance, a comfortable ride, cargo versatility, and plenty of features.
Total Score

GT GTP w/Sport Package GXP Class Average
58 55 56 56.5
Scores for all Midsize Cars

Low Score
45
Average Score
56
High Score
71
2005 Pontiac Grand Prix Prices & Equipment
Model Prices
Prices Updated: 05/17/2005
Trim Name Retail Price Dealer Invoice Destination Charge
Base 4-door sedan $23,060 $21,099 $660
GT 4-door sedan $24,960 $22,838 $660
GTP 4-door sedan $26,730 $24,458 $660
GXP 4-door sedan $29,335 $26,842 $660
Pricing Key: Retail prices listed with each report are set by the vehicle's manufacturer. These figures appear on each car's federally mandated window sticker. Most price lists also include dealer-invoice prices. Dealer-invoice prices are what the dealer pays the manufacturer for the car and its factory-installed options. The destination charge is not included in the suggested-retail or dealer-invoice price and must be added to the cost of the vehicle. Car companies change prices frequently throughout the year. If the prices published do not match those on the vehicle's window sticker, the manufacturer has probably altered the price recently.
NA = price note available, NC = no charge.
Rebates and Incentives
There are no rebates or incentives at this time.
Consumer Guide®'s Rebates and Incentives represent a summary of national manufacturer programs available. Regional restrictions may apply, and offerings may vary by model. For a complete list of Rebate & Incentive programs click here.
Standard Equipment
Base
Powertrain
3.8-liter V6 engine, 4-speed automatic transmission.
Safety
Dual front airbags, 4-wheel disc brakes, daytime running lights, emergency inside trunk release.
Comfort and Convenience Features
Air conditioning, OnStar assistance system w/one-year service, power steering, tilt steering wheel, cruise control, cloth upholstery, front bucket seats, center console, cupholders, split folding rear seat, power mirrors, power windows, power door locks, remote keyless entry, AM/FM/CD player, digital clock, tachometer, intermittent wipers, rear defogger, automatic headlights.
Appearance and Miscellaneous
Theft-deterrent system, rear spoiler, fog lights, 225/60R16 tires, wheel covers.
GT adds to Base:
Powertrain
Traction control.
Safety
Antilock 4-wheel disc brakes, tire-pressure monitor.
Comfort and Convenience Features
Leather-wrapped steering wheel w/radio controls, 6-way power driver seat, fold-flat front passenger seat, AM/FM/CD/MP3 player, illuminated visor mirrors, map lights, floormats.
Appearance and Miscellaneous
Alloy wheels.
GTP adds to GT:
Powertrain
3.8-liter supercharged V6 engine.
Comfort and Convenience Features
Driver-seat power lumbar adjustment, AM/FM/CD player.
Appearance and Miscellaneous
225/55HR17 tires.
GXP adds to GTP:
Powertrain
5.3-liter V8 engine, 4-speed automatic transmission w/manual-shift capability.
Safety
Uprated brakes, antiskid system.
Comfort and Convenience Features
Head-up instrument display, trip computer, compass, outside-temperature indicator.
Appearance and Miscellaneous
Rear spoiler, sport suspension, 255/45R18 front tires, 225/50R18 rear tires.
Optional Equipment
Major Packages
Retail Price
Invoice Price
Sport Pkg.
GTP
$1,320
$1,175
Antiskid system, upgraded variable-assist power steering, manual-shift capability, head-up instrument display, trip computer.
Driver's Plus Pkg. PCM
Base
$1,250
$1,113
6-way power driver seat, floormats, polished alloy wheels.
Leather Trim Pkg.
GT
$795
$708
GTP, GXP
$665
$592
Leather upholstery, heated front seats, driver-seat power lumbar adjustment (GT).
Comfort and Info Pkg. PDE
GT, GTP
$550
$490
Dual-zone automatic climate controls, trip computer.
Comfort and Infotech Pkg. PDF
GT, GTP
$875
$779
Dual-zone automatic climate controls, head-up instrument display, trip computer.
Premium Audio Pkg.
GT, GTP, GXP
$695
$619
AM/FM radio w/in-dash 6-disc CD changer, Monsoon sound system.
Custom Accessories Pkg.
GT, GTP
$675
$601
Unique rear spoiler, grille inserts, stainless-steel exhaust tips.
Safety
Curtain side airbags
GT, GTP, GXP
$395
$352
Antilock brakes
Base
$600
$534
Includes traction control, tire-pressure monitor.
Comfort and Convenience Features
Power sunroof
GT, GTP, GXP
$895
$797
Navigation system
GT, GTP, GXP
$2,390
$2,127
Includes Monsoon sound system. NA w/Premium Audio Pkg.
Dual-zone automatic climate controls
GTP, GXP
$275
$245
AM/FM/CD/MP3 player
GTP
$150
$134
Satellite radio
GT, GTP, GXP
$325
$289
Requires monthly fee after 3rd month.
Driver-seat power lumbar adjustment
GT
$130
$116
Remote starting
Base, GT, GTP, GXP
$150
$133
Appearance and Miscellaneous
Engine-block heater
Base, GT, GTP, GXP
$35
$31
Stainless steel exhaust tips
GT, GTP
$145
$129
Grille inserts
Base, GT, GTP
$150
$134
NA GXP.
Unique rear spoiler
Base, GT, GTP
$380
$338
NA GXP.
Alloy wheels
Base
$350
$312
Polished alloy wheels
GT, GTP
$495
$440
GTP w/Comp. Group
$275
$245
2005 Pontiac Grand Prix Specs & Safety
Vehicle Dimensions
Specification Pontiac Grand Prix 4-door sedan
Wheelbase, in. 110.5
Overall Length, in. 198.3
Overall Width, in. 73.8
Overall Height, in. 55.9
Curb Weight, lbs. 3477
Cargo Volume, cu. ft. 16.0
Standard Payload, lbs. --
Fuel Capacity, gals. 17.0
Seating Capacity 5
Front Head Room, in. 38.5
Max. Front Leg Room, in. 42.4
Rear Head Room, in. 36.5
Max. Rear Leg Room, in. 36.5
Specifications Key: NA = not available; "--" = measurement does not exist.
Engines
  ohv V6 Supercharged ohv V6 ohv V8
Size, liters/cu. in. 3.8 /231 3.8 /231 5.3 /325
Horsepower @ rpm. 200 @ 5200 260 @ 5400 303 @ 5600
Torque (lb-ft) @ rpm. 230 @ 4000 280 @ 3600 323 @ 4400
Availability Standard Standard Standard
EPA City / highway mpg
     
4-speed automatic 20/30 19/28 18/27
Engine Key: l/cu in. = liters/cubic inches; ohv = overhead valve; ohc = overhead camshaft; dohc = dual overhead camshaft; I = inline cylinders; H = horizonally opposed cylinders; V = cylinders in a V configuration; W = cylinders in a W configuration; rpm = revolutions per minute; CVT = continuously variable (automatic) transmission; NA = not available; "--" = measurement does not exist.
Safety Features
Antilock Brakes
Traction Control
Antiskid System
Front Side Airbags
Curtain Side Airbags
Rear Side Airbags
NHTSA Crash-Test Results
Test Pontiac Grand Prix 4-door sedan
Front Impact, Driver 3
Front Impact, Passenger 4
Rollover Resistance 4
Side Impact, Driver 3
Side Impact, Rear Passenger 3
The National Highway Traffic Safety Administration (NHTSA) tests a vehicle's worthiness in front- and side-impact collisions and rates its resistance to rollovers. Front-impact crash-test numbers indicate the chance of serious injury: 5 = 10% or less; 4 = 10-20%; 3 = 20-35%; 2 = 35-45%; 1 = More than 45%. Side-impact crash-test numbers indicate: 5 = 5% or less; 4 = 6-10%; 3 = 11-20%; 2 = 21-25%; 1 = More than 26%. Rollover resistance numbers indicate the chance for rollover when the vehicle leaves the roadway: 5 = Less than 10%; 4 = 10-20%; 3 = 20-30%; 2 = 30-40%; 1 = More than 40%.
Manufacturer's Warranty
Class Years/Miles Comments
Powertrain None/-- --
Bumper-to-bumper 3/36,000 --
Corrosion 6/100,000 --
Free roadside assistance 3/36,000 --
Free scheduled maintenance None/-- --
Manufacturers may periodically offer additional coverage as a purchase incentive. There offers are not reflected on this chart. The federal government requires two other warranties. The Exhaust Emission Warranty covers corrosion-related parts for 2 years/24,000 miles, plus 8 years/80,000 miles on the catalytic converter and any on-board diagnostic device. The Passenger Restraint Warranty covers seat belts and airbags for 5 years/50,000 miles.
Built in: Canada
Drivewheels: front-wheel drive
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