2010-2012 Ford Mustang Convertible V (facelift ) 3.7 V6 (305 Hp)

The Ford Mustang Convertible V, as revised with a facelift in 2009, represented a significant evolution of the fifth-generation Mustang (S197). Production of the 3.7L V6 variant ran from 2010 to 2012, positioned as the mid-range offering in the convertible lineup, slotting between the base 3.7L V6 and the high-performance 5.0L GT models. This iteration aimed to provide a balance of modern Mustang styling, improved performance over earlier models, and a more accessible price point than the V8. It continued the Mustang’s long tradition of offering open-air motoring, appealing to a broader demographic seeking a stylish and enjoyable driving experience.

The 3.7L Duratec V6 Powertrain & Engine Architecture

The heart of the 2010-2012 Mustang Convertible V is the Ford Duratec 37 engine, a 3.7-liter (3727 cm3 or 227.44 cu. in.) naturally aspirated V6. This engine, designated with the code 305 hp, represented a substantial upgrade over the previous 4.0L V6 offered in earlier S197 Mustangs. The Duratec 37 features a 60-degree V-angle, aluminum cylinder heads and block, and a robust cast iron crankshaft. It utilizes a multi-port fuel injection system, delivering fuel directly into the intake ports, and a double overhead camshaft (DOHC) valvetrain with variable valve timing (Ti-VCT) on both intake and exhaust valves. This Ti-VCT system optimizes engine performance and efficiency by adjusting valve timing based on engine speed and load.

While a manual transmission was available, this article focuses on the 6-speed automatic transmission option. This transmission, a 6F55E unit, was designed to handle the increased power output of the 3.7L V6. It features a torque converter lock-up clutch to improve fuel efficiency at cruising speeds. Gear ratios were tuned to provide a balance between acceleration and highway comfort. First gear was relatively short for quick off-the-line acceleration, while higher gears were geared for lower engine speeds during highway driving. The automatic transmission also included selectable driving modes, allowing drivers to choose between a more relaxed or sportier driving experience.

Engine Specifications

Key engine specifications include a compression ratio of 10.5:1, a bore of 95.5 mm (3.76 in), and a stroke of 86.7 mm (3.41 in). The engine produces a maximum power output of 305 horsepower at 6500 rpm and 380 Nm (280.27 lb-ft) of torque at 4250 rpm. The engine oil capacity is 5.7 liters (6.02 US qt / 5.02 UK qt), and the cooling system holds 11.7 liters (12.36 US qt / 10.29 UK qt).

Driving Characteristics

The 2010-2012 Mustang Convertible V with the 3.7L V6 and automatic transmission offered a noticeably more refined and capable driving experience compared to earlier Mustang V6 models. The 305 hp output provided ample power for everyday driving and even spirited acceleration. While not as brutally fast as the 5.0L GT, the 3.7L V6 delivered a smooth and responsive power delivery, making it enjoyable to drive in a variety of conditions. The automatic transmission shifted smoothly and efficiently, contributing to a comfortable ride. The weight-to-power ratio of 5.3 kg/hp (187.5 hp/tonne) allowed for brisk acceleration, and the weight-to-torque ratio of 4.3 kg/Nm (233.6 Nm/tonne) provided good responsiveness in everyday driving situations.

Compared to the manual transmission version, the automatic offered greater convenience, particularly in urban traffic. However, the manual transmission provided a more engaging driving experience and slightly better fuel economy. The 3.7L V6 automatic was also significantly more affordable than the 5.0L GT, making it an attractive option for buyers who wanted a stylish and powerful convertible without the higher price tag.

Equipment & Trim Levels

The 2010-2012 Mustang Convertible V typically came standard with features such as air conditioning, power windows and locks, a CD player with an auxiliary input, and a basic cloth interior. Optional extras included leather upholstery, a premium sound system, automatic climate control, and a power-operated convertible top. The Mustang Convertible V also offered a range of appearance packages, allowing buyers to customize the exterior and interior to their liking. Common options included upgraded wheels, a rear spoiler, and various interior trim options. Safety features included anti-lock brakes (ABS) and a standard airbag system.

Chassis & Braking

The Mustang Convertible V utilized an independent McPherson strut front suspension with a transverse stabilizer bar, providing responsive handling and a comfortable ride. The rear suspension featured a rigid axle setup with coil springs and a transverse stabilizer bar. This configuration offered a good balance between handling and ride quality, although it wasn’t as sophisticated as the independent rear suspension found on some competing vehicles. The braking system consisted of ventilated discs on all four wheels, with front discs measuring 316×30 mm and rear discs measuring 300×19 mm. The ABS system helped to maintain control during hard braking maneuvers.

Market Reception & Comparison

The 2010-2012 Mustang Convertible V was generally well-received by automotive critics. It was praised for its stylish design, improved performance, and comfortable ride. The 3.7L V6 engine was lauded for its smooth power delivery and respectable fuel economy. Fuel consumption figures were approximately 12.4 l/100 km (19 US mpg / 22.8 UK mpg) in urban conditions, 8.1 l/100 km (29 US mpg / 34.9 UK mpg) on the highway, and 10.7 l/100 km (22 US mpg / 26.4 UK mpg) combined. Compared to the 5.0L GT, the 3.7L V6 offered significantly better fuel economy. However, the 5.0L GT provided considerably more power and a more aggressive driving experience. The 3.7L V6 was also considered more reliable than the 5.0L GT, with fewer reported issues.

Technical Specifications

Legacy

The 3.7L Duratec V6 engine, as used in the 2010-2012 Mustang Convertible V, has proven to be a relatively reliable powertrain. While not without its minor issues (such as potential timing chain wear in some cases), it generally holds up well over time with proper maintenance. On the used car market, these Mustangs represent a good value for buyers seeking a stylish and enjoyable convertible. The combination of the 3.7L V6, automatic transmission, and convertible body style makes them a popular choice for those who want a classic American muscle car experience without the higher cost and fuel consumption of the V8 models. Their continued presence on the road is a testament to their durability and enduring appeal.