The Wiesmann GT MF4 S 4.0 V8, produced between 2003 and 2014, represents the high-performance pinnacle of the first-generation Wiesmann GT (codenamed GT MF4). This model, characterized by its striking roadster styling and powerful naturally aspirated V8 engine, was positioned as the flagship offering within the Wiesmann lineup. The “MF4” designation signifies “Mid-Front Engine, Four Seats” – although in practice, the rear seats are best suited for occasional use or smaller passengers. The GT MF4 S 4.0 V8 catered to enthusiasts seeking a unique, hand-built German sports car with a focus on driving pleasure and exclusivity, differentiating itself from more mainstream grand tourers.
Powertrain & Engine Architecture
At the heart of the GT MF4 S 4.0 V8 lies a 3,999 cc (244.03 cu. in.) naturally aspirated V8 engine. This engine, sourced from BMW (specifically the S62B50 variant), is renowned for its high-revving character and robust construction. It produces a maximum power output of 420 hp at 8,300 rpm and 400 Nm (295.02 lb-ft) of torque at 3,900 rpm. The engine features a 12:1 compression ratio and utilizes individual throttle bodies for enhanced throttle response. The engine is longitudinally mounted in the front-mid position, contributing to a balanced weight distribution. Fuel is delivered via multi-point fuel injection. The valvetrain employs double overhead camshafts (DOHC) with four valves per cylinder. The GT MF4 S 4.0 V8 exclusively utilized a 6-speed manual transmission, delivering direct control to the rear wheels. This transmission was chosen to complement the engine’s performance characteristics and appeal to the driving enthusiast.
Engine Specifications
The BMW S62B50 engine is known for its durability and responsiveness. Its naturally aspirated design, while not offering the low-end torque of a turbocharged engine, provides a linear power delivery and a thrilling high-rpm experience. The engine’s architecture allows for relatively straightforward maintenance, although specialized knowledge is recommended due to its complexity. The engine’s power-to-liter ratio is an impressive 105 hp/liter.
Driving Characteristics
The Wiesmann GT MF4 S 4.0 V8 delivers a distinctly engaging driving experience. The combination of the high-revving V8 and the precise 6-speed manual transmission allows for precise control and a strong connection to the car. Acceleration from 0 to 100 km/h (0-62 mph) takes just 4.4 seconds, while 0 to 60 mph is achieved in a calculated 4.2 seconds. The car boasts a top speed of 293 km/h (182.06 mph). The rear-wheel-drive configuration and well-tuned suspension contribute to excellent handling and balance. While the ride is firm, it is not overly harsh, providing a reasonable level of comfort for longer journeys. The steering is direct and communicative, offering ample feedback to the driver. Compared to potential future turbocharged variants (which never materialized), the MF4 S 4.0 V8 offers a more traditional and visceral driving experience, prioritizing driver involvement over outright speed.
Equipment & Trim Levels
The Wiesmann GT MF4 S 4.0 V8 was largely a bespoke vehicle, with a high degree of customization available to buyers. Standard equipment included leather upholstery, air conditioning, power windows, and a high-quality audio system. The interior was hand-finished and featured a minimalist design, emphasizing quality materials and craftsmanship. Optional extras included navigation systems, upgraded audio systems, and various interior trim options. Exterior customization options were extensive, allowing customers to choose from a wide range of paint colors and finishes. The dashboard layout was driver-focused, with clearly arranged gauges and controls. The car’s interior, while luxurious, prioritized functionality and a sporty ambiance over opulent extravagance.
Chassis & Braking
The GT MF4 S 4.0 V8 utilizes a steel space frame chassis, providing a rigid and lightweight foundation for the vehicle. Suspension is handled by a double wishbone setup at both the front and rear, offering excellent control and handling characteristics. The braking system consists of ventilated discs all around, providing ample stopping power. Anti-lock braking system (ABS) is standard. The car rides on 245/45 R18 tires mounted on 8J x 18 inch wheel rims. The chassis and suspension were tuned to complement the engine’s power and deliver a balanced and responsive driving experience. The relatively low curb weight of 1,370 kg (3,020.33 lbs) further enhances the car’s agility.
Market Reception & Comparison
The Wiesmann GT MF4 S 4.0 V8 was generally well-received by automotive critics, who praised its performance, handling, and exclusivity. The car was often compared to other high-performance sports cars, such as the Porsche 911 and the Aston Martin Vantage. However, the Wiesmann’s unique styling and hand-built nature set it apart from its competitors. Fuel economy, at 12.3 l/100 km (19.1 US mpg), was typical for a high-performance V8 engine of this era. Reliability was generally good, although maintenance costs could be high due to the car’s specialized components and limited production run. Compared to potential lower-powered Wiesmann variants (which were not widely produced), the MF4 S 4.0 V8 offered a significant performance upgrade, justifying its higher price tag. The car’s CO2 emissions were rated at 295 g/km, meeting Euro 5 standards.
Technical Specifications
| Brand | Wiesmann |
| Model | GT MF4 |
| Type | S 4.0 V8 (420 Hp) |
| Start of production | 2003 |
| End of production | 2014 |
| Body type | Coupe |
| Seats | 2 |
| Doors | 2 |
| Fuel consumption (urban) | 17.2 l/100 km (13.7 US mpg) |
| Fuel consumption (extra urban) | 9.4 l/100 km (25 US mpg) |
| Fuel consumption (combined) | 12.3 l/100 km (19.1 US mpg) |
| CO2 emissions | 295 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0-100 km/h | 4.4 sec |
| Acceleration 0-62 mph | 4.4 sec |
| Acceleration 0-60 mph | 4.2 sec |
| Maximum speed | 293 km/h (182.06 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 3.3 kg/Hp |
| Weight-to-torque ratio | 3.4 kg/Nm |
| Power | 420 Hp @ 8300 rpm |
| Torque | 400 Nm @ 3900 rpm (295.02 lb.-ft. @ 3900 rpm) |
| Engine layout | Front, Longitudinal |
| Engine displacement | 3999 cm3 (244.03 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 92 mm (3.62 in.) |
| Piston Stroke | 75.2 mm (2.96 in.) |
| Compression ratio | 12:1 |
| Engine aspiration | Naturally aspirated |
| Kerb Weight | 1370 kg (3020.33 lbs.) |
| Max. weight | 1620 kg (3571.49 lbs.) |
| Max load | 250 kg (551.16 lbs.) |
| Fuel tank capacity | 70 l (18.49 US gal | 15.4 UK gal) |
| Length | 4230 mm (166.54 in.) |
| Width | 1880 mm (74.02 in.) |
| Height | 1190 mm (46.85 in.) |
| Wheelbase | 2507 mm (98.7 in.) |
| Drivetrain | Rear wheel drive |
| Number of gears | 6, manual transmission |
| Front suspension | Double wishbone |
| Rear suspension | Double wishbone |
| Front brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Tires size | 245/45 R18 |
| Wheel rims size | 8J x 18 |
Legacy
The Wiesmann GT MF4 S 4.0 V8 remains a highly sought-after vehicle among collectors and enthusiasts. The BMW S62B50 engine is known for its reliability when properly maintained, although preventative maintenance is crucial due to its age. The car’s hand-built construction and limited production run contribute to its enduring appeal. In the used car market, prices for well-maintained examples remain relatively high, reflecting the car’s exclusivity and performance. The GT MF4 S 4.0 V8 represents a unique chapter in automotive history, showcasing a blend of German engineering, British roadster styling, and a commitment to driving pleasure.
