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Mercedes-Benz SL R129, facelift 1998 AMG SL 73 V12 (525 Hp) Automatic
Overall Rating
Mercedes-Benz SL:
The Mercedes-Benz SL-Class is a grand touring sports car manufactured by Mercedes-Benz since 1954. The designation "SL" derives from the German term "Sport-Leicht", which translates to "Sport Light" in English.
Initially, the first 300 SL was a racing sports car built in 1952 with no intention of developing a street version. In 1954, an American importer Max Hoffman suggested the street version of 300 SL for the wealthy performance car enthusiasts in the United States where the market for the personal luxury car was booming after the Second World War....(Read more on Wikipedia)
R129, facelift 1998 Overview:
Mercedes-Benz SL (R129, facelift 1998). With 750 Nm of torque, it offers ample pulling power. With a weight of 1975 kg, it falls in the mid‑range. Rear‑wheel drive offers dynamic handling and sporty feedback. Acceleration is excellent (0–100 km/h in 4.8 s). The top speed reaches 250 km/h. A two-seater convertible designed for open-top driving pleasure. Seating for 2 makes it ideal for daily use.
AMG SL 73 V12 (525 Hp) Automatic Verdict:
Performance Verdict
Supercar-rivalling acceleration and immense power from the legendary 7.3L V12, offering an exhilarating driving experience.
Fuel Economy
Extremely poor fuel economy, expected for a large displacement, high-performance V12 engine.
Pros and Cons:
Pros:
- • Timeless and elegant design
- • Exceptional build quality and robust construction
- • Wide range of powerful and smooth engines, including rare V12s
- • High levels of comfort and luxury for grand touring
- • Becoming a desirable classic, holding its value well
Cons:
- • High fuel consumption, especially for V8 and V12 models
- • Expensive maintenance and parts, particularly for complex systems
- • Heavy for a roadster, impacting agility compared to pure sports cars
- • Complex electronics can lead to age-related issues
- • Limited practicality with only two seats and modest trunk space
Specifications:
Specifications are compared to those of the previous generation(R129, facelift 1995: April, 1996 - May, 1998).
| General: | |
|---|---|
| Brand: | Mercedes-Benz |
| Model: | SL |
| Generation: | R129, facelift 1998 |
| Modification (Engine): | AMG SL 73 V12 (525 Hp) Automatic |
| Start of production: | April, 1999 |
| End of production: | May, 2001 |
| Powertrain Architecture: | Internal Combustion engine |
| Body type: | Roadster |
| Seats: | 2 |
| Doors: | 2 |
| Engine: | |
|---|---|
| Power: | 525 Hp @ 5500 rpm. Same horsepower |
| Power per litre: | 72 Hp/l [Same length.] |
| Torque: | 750 Nm @ 4000 rpm. |
| Engine Model/Code: | M 120 E 73/120.990 More details about the engine M 120 E 73/120.990 |
| Engine displacement: | 7291 |
| Number of cylinders: | 12 |
| Engine configuration: | V-engine |
| Number of valves per cylinder: | 4 |
| Fuel injection system: | Multi-port manifold injection |
| Engine aspiration: | Naturally aspirated engine |
| Valvetrain: | DOHC |
| Engine layout: | Front, Longitudinal |
| Cylinder Bore: | 91.5 mm mm |
| Piston Stroke: | 92.4 mm mm |
| Compression ratio: | 10.5:1 |
| Performance: | |
|---|---|
| Fuel Type: | Petrol (Gasoline) |
| Fuel consumption (economy) - urban: | 24.5 l/100 km |
| Fuel consumption (economy) - extra urban: | 11.4 l/100 km |
| Fuel consumption (economy) - combined (NEDC): | 15.9 l/100 km |
| Fuel consumption (economy) - urban (NEDC): | 24.5 l/100 km |
| Fuel consumption (economy) - extra urban (NEDC): | 11.4 l/100 km |
| Fuel consumption (economy) - combined: | 15.9 l/100 km |
| Emission standard: | Euro 3 |
| Acceleration 0 - 100 km/h: | 4.8 sec |
| Acceleration 0 - 62 mph: | 4.8 sec |
| Maximum speed: | 250 km/h, Electronically limited |
| Weight-to-power ratio: | 3.8 kg/Hp, 265.8 Hp/tonne |
| Weight-to-torque ratio: | 2.6 kg/Nm, 379.7 Nm/tonne |
| Acceleration 0 - 60 mph: | 4.6 sec |
| Space: | |
|---|---|
| Kerb Weight: | 1975 |
| Max. weight: | 2320 |
| Max load: | 345 |
| Trunk (boot) space - minimum: | 265 l |
| Fuel tank capacity: | 80 l |
| Size: | |
|---|---|
| Length: | 4499 mm mm [Same length.] |
| Width: | 1812 mm mm [Same width.] |
| Height: | 1296 mm mm [Same height.] |
| Wheelbase: | 2515 mm mm [Same wheelbase.] |
| Front track: | 1553 mm |
| Rear (Back) track: | 1541 mm |
| Minimum turning circle (turning diameter): | 10.7 m [above average] |
| Powertrain: | |
|---|---|
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears | 5 |
| Transmission type | Automatic |
| Front brakes | Ventilated discs [Best for performance and cooling.] |
| Rear brakes | Ventilated discs [Best for performance and cooling.] |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Cone worm with recirculation balls |
| Power steering | Hydraulic Steering |
| Tires size | Front wheel tires: 245/40 ZR 18 |
| Wheel rims size | Front wheel rims: 8.5 J x 18 H 2 |
| Front suspension | Coil spring, Hydro-pneumatic element, Wishbone, Transverse stabilizer |
| Rear suspension | Hydro-pneumatic element, Independent multi-link suspension, Transverse stabilizer, Coil spring |
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