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Acceleration
"V6 provides ample power for everyday use, abetted by smooth, prompt automatic
transmission. Supercharged version is muscular. No opportunity yet to time GXP,
but V8 has ample around-town power, robust acceleration. TAPshift enhances performance
more than many such systems, though the paddles are difficult to reach with thumbs."
Value
"It trails our top-rated Honda Accord and Toyota Camry for interior quality,
and rear-seat comfort is subpar. Still, Grand Prix appeals for its good performance,
comfortable ride, cargo versatility, and plenty of features at competitive prices.
The potent GXP is worth a look for shoppers who value power and expressive styling
above all else."
Ride
"Base comfortable on uneven pavement, but can be floaty at highway speeds. GT
and GXP more stable, firm but not harsh over bumps."
Economy
Test V6s averaged 17.1-19.0 mpg. GXP averaged 15.3. Pontiac recommends premium-grade fuel for GT and GXP.
Noise
"Wind noise muted. GXP's low-profile tires slap on sharp pavement joints, but
road rumble otherwise unobtrusive. V6s gruff in full-throttle acceleration. V8
much smoother, more refined."
Comfort - Front
"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."
Comfort - Rear
"Fair leg room, but limited toe space. Seatback uncomfortably hard; low cushion
provides little thigh support. Rear doors open unusually wide, easing entry/exit,
but coupelike roofline means adults must duck getting in or out."
Controls
"Large gauges, easy-to-use controls. Unlike many other General Motors cars, wipers
get own stalk instead of sharing turn-signal lever. Interior materials disappoint
for the price, trail most rivals for feel and quality."
Cargo Room
"Trunk volume average for class, but available fold-flat right-front seatback
and standard 60/40 split folding rear seat can expand load volume for objects
up to 9.5-ft long. Wide-opening rear doors ease loading bulky items."
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