Mustang GT Vs S5 Cabriolet: Convertible Comparison

The Ford Mustang GT Convertible and Audi S5 Cabriolet represent two distinct philosophies in the luxury sports convertible segment. The Mustang delivers unfiltered American V8 muscle with a thunderous exhaust note and rear-wheel-drive dynamics, while the Audi S5 Cabriolet counters with turbocharged sophistication, all-wheel-drive grip, and premium refinement. Both achieve 0-60mph in 5.0 seconds despite the Mustang’s 444bhp edge over the S5’s 349bhp, making this a close contest for enthusiasts seeking open-air excitement.

Powertrain and Acceleration Breakdown

At the heart of the Mustang lies a naturally aspirated **5.0-liter V8** pumping out 444bhp and 527Nm of torque, paired with a slick 10-speed automatic transmission sending power exclusively to the rear wheels. This setup produces a visceral roar that defines muscle car heritage, accelerating from 0-60mph in exactly 5.0 seconds and topping out at 155mph. In-gear sprints shine too, with 30-50mph in 2.3 seconds and 50-70mph in 2.8 seconds, thanks to the gearbox’s abundant ratios.

Contrast this with the Audi S5 Cabriolet’s **3.0-liter V6 turbocharged TFSI engine**, generating 349bhp and 500Nm through an eight-speed automatic and quattro all-wheel drive. Despite 95bhp less, it matches the Mustang’s 0-60mph at 5.0 seconds, leveraging superior traction off the line. Its in-gear times are competitive—2.4 seconds for 30-50mph in third gear and 3.0 seconds in fourth—trailing the Ford by mere tenths. The turbo V6 delivers smooth, urgent shove without the drama, ideal for varied conditions.

This table highlights their parity in outright pace, but the Mustang edges ahead in flexibility.

Handling and Ride Dynamics

The Mustang Convertible’s rear-wheel-drive chassis offers playful dynamics, with sharp steering and a lively tail that invites controlled slides on twisty roads. However, its ride stiffens under hard cornering loads, transmitting bumps harshly, especially with the fabric roof up. It’s tuned for excitement over compliance, suiting track days or canyon carving but less so for daily commutes.

The S5 Cabriolet excels in poise, its quattro system providing unflappable grip and precise turn-in. The suspension balances firmness with comfort, absorbing imperfections better than the Ford. Even with the roof folded, structural rigidity holds up, minimizing cowl shake. It’s the choice for confident, high-speed stability in wet or demanding conditions.

• Mustang strengths: Engaging tail-happy handling, direct steering feedback.
• S5 strengths: Superior all-weather traction, composed body control.

Design and Open-Air Experience

Visually, the Mustang screams presence with its wide stance, aggressive grille, and bulging hood—pure retro muscle. The fabric roof folds neatly, revealing a cavernous cabin bathed in V8 symphony. However, wind buffeting at speed can intrude without a deflector.

The Audi adopts understated elegance: sleek lines, matrix LED lights, and a taut profile. Its acoustic canvas top insulates superbly, and the power mechanism operates swiftly. Rear headroom remains usable with the top up, enhancing versatility.

Interior Comfort and Practicality

Inside the Mustang, **premium materials** meet sporty ergonomics, but the cabin feels dated with a small screen and cramped rear seats suitable only for children. Trunk space is limited at 11.4 cubic feet, further reduced roof-down.

The S5’s **Virtual Cockpit** and twin touchscreens deliver cutting-edge tech, wrapped in supple leather and Alcantara. Rear seats accommodate adults better, with 1.3 inches more headroom and 3.7 inches legroom in coupe variants (similar for cabrio). Cargo holds 8.8 cubic feet, prioritizing luxury over outright space.

Fuel economy favors the Audi at 29.1mpg tested versus the Mustang’s 20.9mpg, with CO2 at 181g/km vs 279g/km—both attract £450 annual tax.

Pricing and Ownership Costs

UK pricing positions the Mustang GT Convertible at £47,645, undercutting the S5 Cabriolet at £52,540. US MSRP reflects this: Mustang from $34,635, S5 from $59,195. Running costs tilt toward the Audi via superior efficiency and quattro reliability, though Mustang’s simpler mechanics may lower servicing bills.

Safety and Advanced Driver Aids

The Audi S5 shines in safety, earning IIHS **Top Safety Pick+** for 2022 with exemplary crash scores, pre-crash seatbelt pretensioners, secondary collision braking, and top-view cameras. Quattro aids poor-weather traction, and pedestrian detection is standard.

The Mustang scores acceptably in IIHS tests but lacks AWD, post-collision braking, and full 360-degree views—offering rear sensors instead. Both share basics like airbags and stability control.

Technology and Infotainment

Mustang’s SYNC 4 system includes a 12.4-inch digital cluster and 13.2-inch touchscreen, supporting wireless Apple CarPlay/Android Auto. Audio is solid but not class-leading.

S5’s MMI with 10.1- and 8.6-inch screens, haptic controls, and optional Bang & Olufsen sound outpaces it. Navigation and driver aids integrate seamlessly.

Daily Usability and Refinement

For everyday duties, the S5 prevails: quieter cruising, compliant ride, spacious cabin, and AWD versatility make it the mature pick. The Mustang thrives on drama but jars over potholes and guzzles fuel.

Both offer four seats, but the Audi’s are more accommodating. Wind management is better in the S5, preserving conversations top-down.

Which Wins for Summer Drives?

Performance purists will adore the Mustang’s V8 growl and tail-out fun, especially at its lower price. All-rounders favor the S5 for refinement, safety, and usability. Test economy and emissions edge the Audi ahead for cost-conscious buyers.

Frequently Asked Questions

Which is faster: Mustang GT or S5 Cabriolet?

Both hit 0-60mph in 5.0 seconds, but Mustang leads in-gear acceleration.

Is the Mustang more fuel-efficient?

No, S5 achieves 29.1mpg vs Mustang’s 20.9mpg in tests.

Does the Audi have better safety ratings?

Yes, IIHS Top Safety Pick+ vs Mustang’s acceptable scores.

Which has more rear space?

Audi S5 offers superior rear headroom and legroom.

Are both suitable for four adults?

Yes, but S5 is more comfortable for rears.