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  • Generation: 2015-Present S550 Mustang

Sixth Generation Mustang (2015 - Present)

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Daniel’s 2016 Mustang GT Is a Neck Breaker

Daniel Erny from Ashburn, Virginia, is the owner of this unique 2016 Read More

David’s Supercharged 2015 Roush Stage 2 Makes 735 at the Wheels

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Gregg’s 2017 Shelby GT350, Track Weapon, Carves Corners at VIR

Gregg Garrett of Clarksville, Virginia, is the owner of this beautiful Read More

We Drive the 2019 Mustang Bullitt, and it is Good!

The 2019 Mustang Bullitt is much more than a badge package. Read More

S550 GT Is the Ultimate Sleeper With 720 RWHP

Married enthusiasts from Sacramento share a photo of their sweet Read More

Terry “Beefcake” Reeves steps into the Direct Injection era with a 1,006 rwhp 2018 Mustang GT

The 2018 Mustang GT 5.0 features an engine platform that has changed Read More

Category: features

Mustang Girl Monday: Yoselin Munoz Loves Her 2016 Mustang

Yoselin Munoz fell in love with her car, a 2016 Mustang Read More

Show-Ready 2017 Triple Yellow GT/CS

John Rosko is back with a 2017 Mustang GT California Special Read More

From Stolen S197 to a Race Red 2015 Mustang GT Premium

This 2015 Mustang GT Premium is reader Cliff Larsen’s second Read More

Rethinking Sports Car racing, Ford Performance is offering a race car for the masses with the GT4 Mustang

Designed to give high-tech engineering to the privateer, the turnkey Read More

Disabled Air Force Veteran’s ProCharged 2015 Mustang GT

This 2015 Mustang GT Performance Pack has graced our Snapshots Read More

G3 sleeper: When tragedy struck, triumph prevailed for Sheldon Lewis and his S550 Mustang

Sheldon Lewis’ turbo packing S550 Mustang. Read More

Success in Excess 2015 Ford Mustang GT

One man’s quest to the fastest and certainly the most satisfying way Read More

208MPH in a 2008 Mustang Cobra Jet Drag Car

James Meagher drives Rick Hernandez’s NHRA-legal Cobra Jet to Read More

2016 Shelby GT350 Has All the Road Course Suspension Goodies

Rich Krabbe has always wanted a Shelby, but he could never find one Read More


Ford Motor Company dropped the curtain on the 2015 Mustang on December 5th, 2013 in six different cities, on four different continents. It was a massive unveiling by any account, and marked the 50th anniversary of the famous pony car as well as the era of the "S550." Though production and sales would not occur until the following year, Ford was quick to get the word out about the new model and its many enhancements.

Whereas many of the previous generations in the modern era could easily be deemed a simple evolutionary design when it comes to the chassis, the 2015 Mustang, or S550 as the new platform was dubbed internally, is a considerable departure in utilizing an independent rear suspension (IRS) on all models. The simplicity and durability of the former solid axle gave way for better ride quality and world-class handling capability. Both the rear and front suspension were clean-sheet designs, an integral-link rear suspension was designed to equal or surpass the previous Boss 302, and the front uses a MacPherson strut arrangement with double-ball joints and twin lower links (rather than A-arms). The S550 retains the same 107-inch wheelbase as its S197 predecessor, and electric-assist power steering.

Prior to its initial launch, Ford announced several other improvements over last year’s offering in the performance department. A throwback to 1986, the S550 marked the return of a fearsome trio of engines – a turbo 4-cylinder, V-6, and a 5.0L V-8. This go-round, though, every engine offered over 300 horsepower, and was designed specifically for the Mustang. The 2.3L Ecoboost, 3.7L V-6, and Coyote 5.0L all received revisions to make them more potent than ever. And each engine was backed by either a 6-speed manual or paddle-shifted automatic transmission with matching improvements in shifting. The brakes are no slouch on the S550 either, as the V-6 Mustang uses a 2-piston caliper and 12-inch rotor combo, while the Ecoboost and GT have 14-inch rotors and 4-piston calipers. There is also a massive 15-inch rotor, 6-piston caliper for track rats available on the GT. Wheel and tire combos start at 17x7.5 with 235/55R17 on the V-6 and Ecoboost, and 18x8 with 235/50R18 on the GT (with larger wheels optional up to 19x9.5).

The 2015 Mustang is a departure from the retro styling that re-launched the brand in 2005, though it uses several design queues from older generations such as the C-pillar, which is reminiscent of a fastback. The defined B-pillar of the S197 has been traded for a seamless design that appears a modern take on the late ‘60s and ‘70s Mustangs. The front and rear fascia are devoid of the hard edges that made the S197 retro, and instead uses a more rounded approach. The wrap-around headlights flow into the flared and muscular fenders, which contribute to the wider body. By pushing the A-pillar back and adding space between the cowl and front wheels, the hood and fenders have been lengthened. The hood, roof, and decklid have all been lowered, which effectively sinks the greenhouse into the body and makes the shoulders much more pronounced. The front grille is a sultry, large open mouth, and the front fascia is now flush with the fenders. The rear end is appropriately capped off with angled tribar taillights, which are showcased by the blacked-out rear panel, and a diffuser below.

As modern as the exterior may feel, Ford intended to surpass those expectations in the interior and electronics. Track Apps, launch control, tire pressure monitoring, and a number of toggles for different driving modes – Normal, Sport, Track, and Snow – that are integrated with the stability control system keep the driver tuned into the performance. Meanwhile push button start, SYNC AppLink, MyKey, MyColor gauges, blind-spot monitoring, cross-traffic alert, remote starting and window-open are just a few of the many high-tech gadgets in which the 2015 is equipped. The style of the interior, though, is not entirely "techy." In fact, it has an aeronautical inspiration that even seems to borrow from the Ford GT with its toggle switches. Seating position is lower than the S197, and there is more hip and shoulder room for rear seat occupants. The trunk is also larger, and there is a wider pass-through from the rear seats.