The Wiesmann Roadster MF3 3.2i 24V, producing 325 horsepower, represents a unique and relatively rare offering in the sports car market. Produced between 2005 and 2014, it was the core model within the MF3 generation of the Wiesmann Roadster line, built upon a custom chassis and emphasizing a classic roadster experience with modern performance. Wiesmann, a small German manufacturer, focused on hand-built, high-quality vehicles, and the MF3 was their flagship model during this period. The “MF3” designation stands for “Motor, Front, 3-liter,” referencing the engine’s placement and displacement. This variant aimed to deliver a thrilling driving experience, blending performance with exclusivity.
Powertrain & Engine Architecture
At the heart of the Wiesmann Roadster MF3 3.2i 24V lies a naturally aspirated 3.2-liter inline-six cylinder engine, derived from BMW’s M3 series engines (specifically the S54 and later N54 variants, though modified by Wiesmann). The engine code varied slightly depending on the production year, but the core architecture remained consistent. This engine boasts a displacement of 3246 cm³ (198.08 cubic inches) and features a compression ratio of 11.5:1. It utilizes a multi-port manifold fuel injection system, ensuring precise fuel delivery for optimal combustion. The valvetrain is a Double Overhead Camshaft (DOHC) design with four valves per cylinder, maximizing airflow and contributing to the engine’s high-revving nature.
The engine generates 325 hp at 7400 rpm and 350 Nm (258.15 lb-ft) of torque at 4900 rpm. This translates to a power-to-liter ratio of 100.1 hp/liter. The engine is mated to a 6-speed manual transmission, sending power exclusively to the rear wheels. Wiesmann did not offer an automatic transmission option for this specific variant, prioritizing driver engagement and performance. The gearbox is known for its precise shifts and robust construction, complementing the engine’s characteristics.
Engine Details
- Engine Code: Based on BMW S54/N54 with Wiesmann modifications
- Displacement: 3.2 liters (3246 cm³)
- Configuration: Inline-6
- Fuel Injection: Multi-port
- Valvetrain: DOHC, 4 valves per cylinder
- Compression Ratio: 11.5:1
Driving Characteristics
The Wiesmann Roadster MF3 3.2i 24V delivers a distinctly engaging driving experience. The combination of the high-revving inline-six engine and the precise manual transmission results in responsive acceleration and a direct connection to the vehicle. Acceleration from 0 to 100 km/h (0-62 mph) takes approximately 4.9 seconds, while 0-60 mph is achieved in around 4.7 seconds. The car boasts a top speed of 255 km/h (158.45 mph). The relatively lightweight construction (1180 kg / 2601.45 lbs) contributes to its agile handling and nimble cornering ability.
Compared to potential theoretical variants with automatic transmissions (which were not offered), the manual gearbox allows for greater driver control and a more visceral experience. The gear ratios are tuned for performance, providing strong acceleration throughout the rev range. While not as technologically advanced as some contemporary sports cars, the MF3 prioritizes a raw, analog driving feel that appeals to enthusiasts. The rear-wheel drive configuration further enhances the driving experience, offering a balanced and predictable chassis.
Equipment & Trim Levels
The Wiesmann Roadster MF3 3.2i 24V was largely a bespoke vehicle, with a high degree of customization available to buyers. However, a standard level of equipment was included. The interior featured high-quality leather upholstery, typically in a range of colors, and a minimalist dashboard design. Standard features included power windows, central locking, and a premium audio system. Air conditioning was also typically included. The steering wheel was leather-wrapped, and the seats were designed for both comfort and support during spirited driving.
Optional extras were extensive and allowed customers to personalize their vehicles significantly. These included upgraded audio systems, navigation systems, different wheel designs, and bespoke interior trim options. Many customers opted for unique paint colors and exterior detailing. The focus was on creating a truly individual vehicle tailored to the owner’s preferences. The interior, while luxurious, remained focused on the driving experience, avoiding excessive ornamentation.
Chassis & Braking
The Wiesmann Roadster MF3 3.2i 24V utilizes a custom-built steel space frame chassis, providing a rigid and lightweight foundation for the vehicle. The suspension consists of spring struts at the front and a transverse stabilizer at the rear. This setup is tuned for sporty handling and provides a good balance between comfort and control. The front brakes are ventilated discs, while the rear brakes are solid discs. The braking system is assisted by ABS (Anti-lock Braking System), enhancing safety and stability during hard braking.
The car rides on 17-inch wheels with tire size 215/50 R17. The steering is a rack and pinion system with hydraulic power steering, providing precise and responsive steering feel. The chassis design and suspension tuning contribute to the car’s agile handling characteristics, making it a rewarding vehicle to drive on winding roads.
Market Reception & Comparison
The Wiesmann Roadster MF3 3.2i 24V received generally positive reviews from automotive critics. It was praised for its engaging driving experience, high-quality construction, and exclusivity. However, its relatively high price and limited availability meant it was not a mainstream vehicle. Compared to other sports cars in its price range, such as the Porsche 911, the Wiesmann offered a more unique and bespoke experience, but lacked the brand recognition and extensive dealer network of its competitors.
Fuel economy is rated at 11 l/100 km (21.4 US mpg / 25.7 UK mpg / 9.1 km/l). Reliability is generally considered good, given the high-quality components used and the meticulous hand-built construction. However, as with any hand-built vehicle, maintenance can be more expensive than for mass-produced cars. The engine, being derived from BMW’s M3 series, is generally robust, but requires regular maintenance to ensure optimal performance.
Technical Specifications
| Brand | Wiesmann |
| Model | Roadster MF3 |
| Type (Engine) | 3.2i 24V (325 Hp) |
| Start of production | 2005 |
| End of production | 2014 |
| Body type | Roadster |
| Seats | 2 |
| Doors | 2 |
| Fuel consumption (combined) | 11 l/100 km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.9 sec |
| Acceleration 0 – 62 mph | 4.9 sec |
| Acceleration 0 – 60 mph | 4.7 sec |
| Maximum speed | 255 km/h (158.45 mph) |
| Weight-to-power ratio | 3.6 kg/Hp |
| Power | 325 Hp @ 7400 rpm |
| Torque | 350 Nm @ 4900 rpm (258.15 lb.-ft. @ 4900 rpm) |
| Engine displacement | 3246 cm3 (198.08 cu. in.) |
| Number of cylinders | 6 |
| Cylinder Bore | 87 mm (3.43 in.) |
| Piston Stroke | 91 mm (3.58 in.) |
| Compression ratio | 11.5:1 |
| Kerb Weight | 1180 kg (2601.45 lbs.) |
| Fuel tank capacity | 60 l (15.85 US gal | 13.2 UK gal) |
| Length | 3860 mm (151.97 in.) |
| Width | 1750 mm (68.9 in.) |
| Height | 1160 mm (45.67 in.) |
| Wheelbase | 2990 mm (117.72 in.) |
| Drive wheel | Rear wheel drive |
| Number of gears | 6 gears, manual transmission |
Legacy
The Wiesmann Roadster MF3 3.2i 24V remains a desirable vehicle in the used car market, particularly among enthusiasts who appreciate its unique character and high-quality construction. The engine, based on the proven BMW M3 platform, is generally reliable, but requires regular maintenance. The bespoke nature of the vehicle means that parts availability can be limited, and servicing may require specialized expertise. However, for those seeking a distinctive and engaging sports car experience, the Wiesmann Roadster MF3 3.2i 24V offers a compelling alternative to more mainstream models. Its rarity and exclusivity ensure that it will continue to be appreciated by collectors and enthusiasts for years to come.
