Road Tests Real world tests of Solstice GXP vs XLR-V

0-60mph

Solstice GXP
5.5 s
XLR-V
4.9 s

Top speed

Solstice GXP
141 mph
XLR-V
155 mph

0-100mph

Solstice GXP
13.1 s
XLR-V
10.9 s

1/4 mile

Solstice GXP
13.7 s
XLR-V
13 s

Differences What are the advantages of each

Front view of Pontiac Solstice GXP

Reasons to consider the
Pontiac Solstice GXP

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Lighter curb weight 2,941 lb vs 3,859 lb Around 25% lighter curb weight; less inertia to overcome when accelerating
Front view of Cadillac XLR-V

Reasons to consider the
Cadillac XLR-V

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More powerful engine 444 HP @ 6,400 RPM vs 260 HP @ 5,300 RPM More than 70% stronger engine
Faster to 100mph 10.9 s vs 13.1 s More than 15% faster to 100mph
More torque 415 ft-lb @ 3,600 RPM vs 261 ft-lb @ 3,300 RPM Around 60% stronger engine from a stand-still; more acceleration power
Faster in the quarter mile 13 s vs 13.7 s More than 5% faster at the drag strip
Much bigger engine 4,400 cc vs 2,000 cc Around 2.2x bigger engine
Faster top speed 155 mph vs 141 mph 14 more mph; leaves lesser cars in the dust on the straights
Higher redline 6,700 RPM vs 6,300 RPM More than 5% more revs

Specifications Full list of technical specs

general

Solstice GXP  vs
XLR-V 
Brand Pontiac Cadillac
Year 2006 2006

power & handling

Power-to-weight ratio 11.31 lb/hp 8.69 lb/hp
Maximum hp 260 HP @ 5,300 RPM 444 HP @ 6,400 RPM
Maximum torque 261 ft-lb @ 3,300 RPM 415 ft-lb @ 3,600 RPM
Max RPM 6,300 RPM 6,700 RPM
Engine placement Front Front
Steering system Rack and pinion Rack and pinion

engine

Displacement 2,000 cc 4,400 cc
Fuels
Gas
Compression ratio 9.2:1 10.5:1
Bore/stroke 3.39 in / 3.39 in 3.58 in / 3.31 in
Valvetrain DOHC DOHC
Valves per cylinder 4 4

physical dimensions

Curb weight 2,941 lb 3,859 lb
Width 71.3 in 72.3 in
Height 50.1 in 50.4 in
Length 157.2 in 177.7 in
Front track width 60.5 in 61.6 in
Wheelbase 95.1 in 105.7 in

road tests

Solstice GXP  vs
XLR-V 
Top speed 141 mph 155 mph
1/4 mile 13.7 s 13 s
0-60mph 5.5 s 4.9 s
0-100mph 13.1 s 10.9 s

transmission

Drivetrain RWD RWD
Gearing Traditional Traditional
# of gears 5 5
Axle ratio 3.73:1 2.56:1

suspension, wheels & brakes

Front brakes Disc Disc
Rear brakes Disc Disc
Front wheels 457/? 216 483/? 216
Rear wheels 457/? 203 483/? 216
Pontiac Solstice GXP
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Cadillac XLR-V
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