Road Tests Real world tests of Impreza WRX STI vs Mustang GT 5.0

0-60mph

Top speed

1/4 mile

Differences What are the advantages of each

Side view of Subaru Impreza WRX STI

Reasons to consider the
Subaru Impreza WRX STI

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Faster top speed 158 mph vs 151 mph 7 more mph; leaves lesser cars in the dust on the straights
Lighter curb weight 3,319 lb vs 3,626 lb Around 10% lighter curb weight; less inertia to overcome when accelerating
Front view of Ford Mustang GT 5.0

Reasons to consider the
Ford Mustang GT 5.0

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More powerful engine 412 HP @ 6,500 RPM vs 296 HP @ 6,000 RPM Around 40% stronger engine
Faster in the quarter mile 12.7 s vs 13.5 s More than 5% faster at the drag strip
Faster to 60mph 4.3 s vs 5 s Around 15% faster to 60mph
Much bigger engine 5,000 cc vs 2,457 cc More than 2x bigger engine
More torque 390 ft-lb @ 4,250 RPM vs 300 ft-lb @ 4,000 RPM 30% stronger engine from a stand-still; more acceleration power
Better power-to-weight ratio 8.8 lb/hp vs 11.21 lb/hp More than 20% better power-to-weight ratio

Specifications Full list of technical specs

general

Impreza WRX STI  vs
Mustang GT 5.0 
Brand Subaru Ford
Price 30,000 30,495
Type of car Production car Production car
Year 2011 2011
City mileage 17 MPG 17 MPG
Highway mileage 23 MPG 26 MPG

transmission

Drivetrain 4WD RWD
Gearing Traditional Traditional
# of gears 6 6

engine

Displacement 2,457 cc 5,000 cc
Cylinders Flat 4 V8
Fuels
Gas

physical dimensions

Curb weight 3,319 lb 3,626 lb
Width 70.7 in 73.9 in
Height 57.9 in 55.6 in
Length 180.3 in 188.1 in
Wheelbase 103.3 in 107.1 in

road tests

Impreza WRX STI  vs
Mustang GT 5.0 
Top speed 158 mph 151 mph
1/4 mile 13.5 s 12.7 s
0-60mph 5 s 4.3 s

power & handling

Power-to-weight ratio 11.21 lb/hp 8.8 lb/hp
Maximum hp 296 HP @ 6,000 RPM 412 HP @ 6,500 RPM
Maximum torque 300 ft-lb @ 4,000 RPM 390 ft-lb @ 4,250 RPM
Steering system Rack and pinion Rack and pinion

suspension, wheels & brakes

Front brakes Disc Disc
Rear brakes Disc Disc
Front wheels 457/? 216 457/? 203
Rear wheels 457/? 216 457/? 203
Subaru Impreza WRX STI
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Ford Mustang GT 5.0
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