Ford Mustang vs Subaru WRX STI Compare price, expert/user reviews, mpg, engines, safety, cargo capacity and other specs at a glance.

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2021 Ford Mustang EcoBoost Convertible RWD
Photo of 2020 model year shown

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2021 Subaru WRX STI AWD
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User Ranking Drivers and owners ranked these cars in 9 categories.

New Car Pricing New listing price comparison and analysis.

2021 Ford Mustang
EcoBoost Convertible RWD
MSRP
$32,705
Invoice
$31,397
Average Price Paid
$32,705
80 listings nationwide

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2021 Subaru WRX STI
AWD
MSRP
$37,245
Invoice
$35,192
Average Price Paid
$37,245
19 listings nationwide

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Pricing Analysis Price analysis based on recent sales data applied to current trim without options.

2021 Ford Mustang
EcoBoost Convertible RWD
Fair Price
$33,057
Good Price
$31,684
Great Price
$30,898
2021 Subaru WRX STI
AWD
Fair Price
$39,897
Good Price
$37,068
Great Price
$35,450

Used Car Pricing Used listing price comparison and analysis.

2021 Ford Mustang
EcoBoost Convertible RWD
CarGurus Instant Market Value
$39,801
5 listings nationwide

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2021 Subaru WRX STI
AWD
CarGurus Instant Market Value
$43,561
54 listings nationwide
3 GREAT deals
12 GOOD deals

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User Reviews Reviews from CarGurus users who have driven or owned the car.

2021 Ford Mustang
EcoBoost Convertible RWD
SG writes:
Handling Ranked 2022 Volkswagen Golf GTI worse.
"Great car handling is great and reliable. Very comfortable driving car in any situation "
2021 Subaru WRX STI
AWD
No User Reviews

Specs

2021 Ford Mustang
EcoBoost Convertible RWD
2021 Subaru WRX STI
AWD
Powertrain 6-Speed Manual
Drivetrain
RWD
RWD
RWD
RWD
AWD
Fuel Economy, City
20 MPG
20 MPG
19 MPG
20 MPG
16 MPG
Fuel Economy, Highway
27 MPG
28 MPG
26 MPG
27 MPG
22 MPG
Fuel Tank Volume 15.5 gal 15.9 gal
Engine
Fuel Type
Gasoline
Gasoline
Gasoline
Gasoline
Gasoline
Power
330 hp @ 6,000 RPM
310 hp @ 5,500 RPM
330 hp @ 6,000 RPM
310 hp @ 5,500 RPM
310 hp @ 6,000 RPM
Torque
350 lb-ft @ 3,000 RPM
350 lb-ft @ 3,000 RPM
350 lb-ft @ 3,000 RPM
350 lb-ft @ 3,000 RPM
290 lb-ft @ 4,000 RPM
Cylinders
4 cylinders
4 cylinders
4 cylinders
4 cylinders
4 cylinders
Compression Ratio
9.5:1
9.5:1
9.5:1
9.5:1
8.1:1
Displacement
2,300 cc
2,300 cc
2,300 cc
2,300 cc
2,500 cc
Bore x Stroke
3.45 in x 3.7 in
3.45 in x 3.7 in
3.45 in x 3.7 in
3.45 in x 3.7 in
3.92 in x 3.11 in
Safety
ABS Brakes Standard Optional
Driver Airbag Standard Optional
Passenger Airbag Standard Optional
Front Side Airbags Standard Optional
Curtain Airbags -- Optional
NHTSA Crash Test Results
Overall -- 5 stars
Front Crash Overall -- 5 stars
Front Crash Driver -- 4 stars
Front Crash Passenger -- 5 stars
Side Crash Overall -- 5 stars
Side Barrier Driver -- 5 stars
Side Barrier Passenger -- 5 stars
Side Pole Driver -- 5 stars
Rollover -- 5 stars
Comfort and Convenience
Air Conditioning Standard Optional
CD Player -- Optional
Radio Standard Optional
Power Windows Standard Optional
Power Door Locks Standard Optional
Interior
Maximum Seating 4 seats 5 seats
Front Legroom 45.1 in 43.3 in
Back Legroom 29.2 in 35.4 in
Payload and Towing
Cargo Volume 11.4 cu ft 12 cu ft
Maximum Payload -- 959 lbs
Exterior
Length 188.5 in 180.9 in
Width 81.9 in 79.5 in
Height 54.9 in 58.1 in
Wheelbase 107.1 in 104.3 in

Available Options

2021 Ford Mustang
EcoBoost Convertible RWD

Exterior Colors

  • Antimatter Blue Metallic
  • Carbonized Gray Metallic
  • Grabber Yellow
  • Iconic Silver Metallic
  • Oxford White
  • Race Red
  • Rapid Red Metallic Tinted Clearcoat
  • Shadow Black
  • Twister Orange Tri-Coat
  • Velocity Blue Metallic

Option Packages

  • 2.3L High Performance Package
  • Active Valve Performance Exhaust
  • Black Accent Package
  • Ford Safe & Smart Package
  • Wheel & Stripe Package
  • Equipment Group 101A
  • Transmission: 10-Speed Selectshift Automatic
  • Wheels: 19" X 8.5" Polished Aluminum
  • Wheels: 19" X 9" Luster Nickel-Painted Forged Alum
2021 Subaru WRX STI
AWD

Exterior Colors

  • Crystal White Pearl
  • Ice Silver Metallic
  • Lapis Blue Pearl
  • Magnetite Gray Metallic
  • Pure Red
  • WR Blue Pearl

Option Packages

  • RECARO Front Seats
  • Popular Package #1
  • Popular Package #3
  • Popular Package #3 (IZT)
  • STI Short Throw Shifter Package

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