The Wiesmann Roadster MF5 4.4 V8 (555 Hp) Automatic, produced between 2009 and 2014, represents the pinnacle of the second-generation Roadster (MF5) lineup from the German manufacturer Wiesmann. This model, built on a bespoke chassis, aimed to deliver a uniquely luxurious and high-performance roadster experience, blending classic styling with modern engineering. The MF5 series, and particularly this high-output variant, positioned itself as a competitor to established sports car brands like Porsche and Aston Martin, offering a more exclusive and handcrafted alternative.
Powertrain & Engine Architecture
At the heart of the Roadster MF5 4.4 V8 lies a 4.4-liter, twin-turbocharged V8 engine, sourced from BMW. Specifically, this engine utilizes the N63 engine family, tuned by Wiesmann to produce 555 horsepower at 5750-6250 rpm and a substantial 680 Nm (501.54 lb-ft) of torque between 1500-5650 rpm. The engine features a longitudinal front-mid engine layout, contributing to balanced weight distribution. The twin-turbocharger setup, incorporating an intercooler, provides both rapid response and high peak power. The engine’s compression ratio is 9.3:1, and it utilizes direct fuel injection for optimized combustion efficiency.
The engine is mated to a 6-speed automatic transmission, sending power exclusively to the rear wheels. This transmission was chosen for its smooth operation and ability to handle the engine’s significant torque output. While not a dual-clutch transmission, it offers responsive shifts and contributes to the car’s overall driving experience. The drivetrain architecture is a traditional rear-wheel-drive configuration, emphasizing driver engagement and sporty handling.
Engine Specifications
The engine’s bore and stroke are 89 mm (3.5 in) and 88.3 mm (3.48 in) respectively, resulting in a displacement of 4395 cm3 (268.2 cu. in). The power-to-litre ratio is an impressive 126.3 hp/l, highlighting the engine’s high specific output. The engine meets Euro 5 emission standards.
Driving Characteristics
The Wiesmann Roadster MF5 4.4 V8 delivers exhilarating performance. Its 0-60 mph acceleration is calculated at 3.7 seconds, with 0-100 km/h achieved in 3.9 seconds. The top speed is electronically limited to 311 km/h (193.25 mph). The substantial torque available from low engine speeds provides strong acceleration in any gear. The automatic transmission, while smooth, is geared towards providing a balance between performance and comfort. Compared to potential manual transmission variants (which were not widely offered), the automatic prioritizes ease of use and accessibility for a broader range of drivers. The car’s relatively low kerb weight of 1470 kg (3240.8 lbs) contributes to its agile handling and responsive feel.
The Roadster MF5’s driving experience is further enhanced by its well-tuned suspension and precise steering. The car feels planted and stable at high speeds, offering a confident and engaging driving experience. However, the firm suspension can result in a somewhat harsh ride on uneven road surfaces.
Equipment & Trim Levels
The Wiesmann Roadster MF5 4.4 V8 was positioned as a premium offering, and as such, came standard with a high level of equipment. Standard features included leather upholstery, air conditioning, power windows, and a high-end audio system. The interior was handcrafted with meticulous attention to detail, reflecting Wiesmann’s commitment to quality and exclusivity. The dashboard featured a combination of traditional gauges and modern infotainment systems.
Customers could personalize their vehicles with a wide range of optional extras, including bespoke interior trim options, upgraded audio systems, and various exterior styling enhancements. The level of customization was a key selling point for Wiesmann, allowing buyers to create a truly unique vehicle. While specific trim levels were not formally designated, the level of customization effectively allowed customers to tailor the car to their individual preferences.
Chassis & Braking
The Roadster MF5 utilizes a bespoke chassis constructed from steel, providing a rigid and stable platform for the high-performance powertrain. The suspension system employs double wishbones at both the front and rear, offering excellent handling characteristics. Ventilated disc brakes are fitted on all four wheels, providing ample stopping power. An Anti-lock Braking System (ABS) is standard, enhancing safety and control. The car rides on 19-inch alloy wheels, with tire sizes of 245/40 R19 at the front and 275/35 R19 at the rear, providing optimal grip and handling.
Market Reception & Comparison
The Wiesmann Roadster MF5 4.4 V8 received generally positive reviews from automotive critics. It was praised for its powerful engine, engaging driving dynamics, and luxurious interior. However, some critics noted the car’s relatively high price and limited practicality. Compared to other models in the Wiesmann lineup, the MF5 4.4 V8 represented the top-of-the-range performance option. It offered significantly more power and performance than the lower-spec models. Fuel economy, unsurprisingly, was not a strong point, with combined fuel consumption of 12.9 l/100 km (18.2 US mpg, 21.9 UK mpg), and CO2 emissions of 299 g/km. Reliability reports are limited due to the low production volume, but the use of proven BMW engine components suggests a reasonable level of dependability.
Technical Specifications
| Brand | Wiesmann |
| Model | Roadster MF5 |
| Type (Engine) | 4.4 V8 (555 Hp) Automatic |
| Start of production | 2009 |
| End of production | 2014 |
| Body type | Roadster |
| Seats | 2 |
| Doors | 2 |
| Fuel consumption (urban) | 18.7 l/100 km (12.6 US mpg, 15.1 UK mpg) |
| Fuel consumption (extra urban) | 9.5 l/100 km (24.8 US mpg, 29.7 UK mpg) |
| Fuel consumption (combined) | 12.9 l/100 km (18.2 US mpg, 21.9 UK mpg) |
| CO2 emissions | 299 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 3.9 sec |
| Acceleration 0 – 62 mph | 3.9 sec |
| Acceleration 0 – 60 mph | 3.7 sec |
| Maximum speed | 311 km/h (193.25 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 2.6 kg/Hp |
| Weight-to-torque ratio | 2.2 kg/Nm |
| Power | 555 Hp @ 5750-6250 rpm |
| Torque | 680 Nm @ 1500-5650 rpm (501.54 lb.-ft.) |
| Engine layout | Front, Longitudinal |
| Engine displacement | 4395 cm3 (268.2 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 89 mm (3.5 in.) |
| Piston Stroke | 88.3 mm (3.48 in.) |
| Compression ratio | 9.3:1 |
| Engine aspiration | Twin-Turbo, Intercooler |
| Kerb Weight | 1470 kg (3240.8 lbs.) |
| Fuel tank capacity | 70 l (18.49 US gal | 15.4 UK gal) |
| Length | 4220 mm (166.14 in.) |
| Width | 1950 mm (76.77 in.) |
| Height | 1180 mm (46.46 in.) |
| Wheelbase | 2507 mm (98.7 in.) |
| Drivetrain | Rear wheel drive |
| Number of gears | 6 |
| Gearbox type | Automatic transmission |
| Front suspension | Double wishbone |
| Rear suspension | Double wishbone |
| Front brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Tires size | 245/40 R19; 275/35 R19 |
| Wheel rims size | 8.5J x 19; 10; 0J x 19 |
Legacy
The Wiesmann Roadster MF5 4.4 V8 Automatic remains a sought-after vehicle among collectors and enthusiasts. Its limited production numbers and unique character contribute to its desirability. The BMW-sourced engine is known for its reliability, although regular maintenance is essential. The car’s handcrafted construction and high level of customization ensure that each example is unique. In the used car market, prices for well-maintained examples remain relatively high, reflecting the car’s exclusivity and performance capabilities. The MF5 represents a high point in Wiesmann’s history, showcasing the brand’s commitment to building exceptional and distinctive sports cars.
