Performance Tested - 2015 Ford Mustang GT Long-Term Road Test

2015 Ford Mustang GT Long-Term Road Test

  • Full Review
  • Pricing & Specs
  • Road Tests (2)
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  • Long-Term

2015 Ford Mustang GT: Performance Tested

February 2, 2015

2015 Ford Mustang GT

It's only taken 50 years, but every Mustang finally gets an independent rear suspension for 2015. The combination of our 2015 Ford Mustang GT's 435-horsepower V8, IRS and optional Performance Package should make this pony charge through our slalom gates.

The current-gen Dodge Challenger RT and Chevrolet Camaro SS both use IRS, so how does the Mustang compare? And how will our tests results differ from our old long-termer? Read ahead to find out.

Vehicle: 2015 Ford Mustang GT with Performance Package

Odometer: 1,747

Date: 1/13/2015

Driver: Josh Jacquot

Price: $45,490

Specifications:
Drive Type: Rear-wheel drive
Transmission Type: Six-speed manual
Engine Type: Naturally aspirated V8
Displacement (cc/cu-in): 4,951 / 302
Redline (rpm): 6,700
Horsepower (hp @ rpm): 435 @ 6,500
Torque (lb-ft @ rpm): 400 @ 4,250
Brake Type (front): One piece ventilated disc with six-piston fixed calipers
Brake Type (rear): One piece ventilated disc with single-piston sliding calipers
Suspension Type (front): MacPherson strut with anti-roll bar
Suspension Type (rear): Independent multilink, anti-roll bar, monotube dampers

Tire Size (front): 255/40ZR19 96Y
Tire Size (rear): 275/40ZR19 101Y
Tire Brand: Pirelli
Tire Model: PZero
Tire Type: Asymmetrical, summer
As-Tested Curb Weight (lb): 3,796

Test Results: 

Acceleration:
0-30 (sec): 2.1 (w/ TC on 2.3)
0-45 (sec): 3.4 (w/ TC on 3.6)
0-60 (sec): 4.8 (w/TC on 5.3)
0-60 with 1-ft Rollout (sec): 4.5 (w/TC on 5.0) 
0-75 (sec): 6.8 (w/TC on 7.0) 
1/4-Mile (sec @ mph): 13.0 @ 111.4 (w/TC on 13.2 @ 110.8)

Braking: 
30-0 (ft): 27
60-0 (ft): 108

Handling:
Slalom (mph): 69.3 (69.5 w/ESC on)
Skid Pad Lateral acceleration (g): 0.94 (0.96 w/ESC on)
RPM @ 70: 2,000

Comments:

Acceleration comments: Though we found it inconsistent, the best launch was executed using the GT's launch control, which is easy to trigger. Though it launches by default from 3,000 rpm, launch control still bogs the 'Stang's engine off the line. It is adjustable between 3,000 and 4,500 rpm and was quicker than any launch we could produce using mild wheelspin. It's not easy to feed the Mustang's clutch in without either bogging the engine or boiling the tires. Gear ratios are close and shifts are rapid thanks to the Mustang's fantastic short-throw shifter. It barely makes the quarter-mile in fourth gear, however.

Braking comments: Pedal travel is minimal and fade is nonexistent in this test. Though every stop wasn't identical, the difference can't be attributed to heat in the brakes. Engagement, which is solid and high in the travel, never changes. These are confident brakes. There's still ample dive during braking, but the Mustang stops straight every time.

Handling comments:
Slalom: Though its numbers probably don't make it the best-handling Mustang ever (Boss 302, anyone?), the 2015 GT shows how much potential there is with independent rear suspension. Surface inconsistencies matter less than they ever have before and this Mustang transitions confidently. Its stability control is tuned remarkably well, too. In "Track" mode the ESC threshold expands enough to allow a moderate slide before it steps in. In fact, you'll be slowing yourself down before it does.

Skidpad: Front grip is translated very well to the driver, which is a new trait in the Mustang. This makes it easy to walk right up the limits of the front tires before backing off and balancing the car on the throttle. It also rotates well off throttle. It's a shame this car is so needlessly large because it would be alright at 7/8ths scale.

Ford vs. Chevy vs. MOPAR is a war that has raged since before time was kept. Here are the results for the newest versions of each pony car, along with our long-term 2011 Mustang GT.

The Challenger wears a set of Goodyear Eagle F1 Supercar tires. The Camaro is equipped with the 1LE Performance Package and is shod in Goodyear Eagle F1 Supercar G:2 meats and the last-gen Mustang lays down power through Pirelli PZeros.

 

2015 Ford Mustang GT

2015 Dodge Challenger R/T

2013 Chevrolet Camaro SS 1LE

2011 Ford Mustang GT

Curbweight as Tested (lbs.)

3,796

4,181

3,880

3,629

0-30 (sec.):

2.1

2.2

2.1

2.2

0-45 (sec.):

3.4

3.7

3.2

3.5

0-60 (sec.):

4.8

5.8

4.8

5.0

0-60 with 1-ft Rollout (sec.):

4.5

5.6

4.6

4.8

0-75 (sec.):

6.8

8.1

6.8

6.8

¼-mile (sec @ mph):

13.0 @ 111.4

14.0 @ 98.1

13.0 @ 108.7

13.1 @ 109.5

Skid Pad Lateral Accel (g):

0.94

0.87

0.97

0.92

Slalom:

69.3

67.8

70.8

69.0

Braking 60-0 mph

108

111

108

109

Braking 30-0 mph

27

29

26

27

Cameron Rogers, Vehicle Testing Assistant @ 1,747 miles


2015 Ford Mustang

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  • Long-Term

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