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Mercedes-Benz Ponton W121 Sedan 190 (75 Hp)
Overall Rating
Mercedes-Benz Ponton:
The Mercedes-Benz "Ponton" series is a range of sedans / saloon car models from Mercedes-Benz, introduced starting in 1953, and subsequently nicknamed 'Ponton' , referring to its ponton styling, a prominent styling trend that unified the previously articulated hood, body, fenders and runnings boards into a singular, often slab-sided envelope. At the time, Mercedes itself did not refer to any of its cars using the nickname.
Mercedes stretched the 'Ponton' saloons into a range that became the automaker's dominant production models until 1959....(Read more on Wikipedia)
W121 Sedan Overview:
Mercedes-Benz Ponton (W121 Sedan). With 136 Nm of torque, it offers ample pulling power. Weighing only 1200 kg, it’s quite light. Rear‑wheel drive offers dynamic handling and sporty feedback. Acceleration is relatively slow (0–100 km/h in 20.5 s). The top speed reaches 140 km/h. A four-door car with a separate trunk, ideal for families and daily commuting. Seating for 5 makes it ideal for daily use.
190 (75 Hp) Verdict:
Performance Verdict
This petrol engine offers adequate performance for its time, suitable for relaxed cruising and city driving, but not for spirited acceleration.
Fuel Economy
With a combined fuel consumption of 8.9 l/100 km, it provides reasonable economy for a classic petrol engine of its displacement.
Pros and Cons:
Pros:
- • Iconic and elegant Mercedes-Benz styling
- • Robust and durable build quality
- • Comfortable and smooth ride for its era
- • Significant historical and collector value
- • Excellent fuel economy with the diesel variant
Cons:
- • Very modest performance by modern standards
- • Lacks any modern safety features
- • Drum brakes offer limited stopping power
- • Parts can be challenging to source and expensive
- • Restoration costs can be substantial
Specifications:
Specifications are compared to those of the previous generation(W180 I Sedan: March, 1954 - April, 1956).
| General: | |
|---|---|
| Brand: | Mercedes-Benz |
| Model: | Ponton |
| Generation: | W121 Sedan |
| Modification (Engine): | 190 (75 Hp) |
| Start of production: | March, 1956 |
| End of production: | August, 1959 |
| Powertrain Architecture: | Internal Combustion engine |
| Body type: | Sedan |
| Seats: | 5 |
| Doors: | 4 |
| Engine: | |
|---|---|
| Power: | 75 Hp @ 4600 rpm. Same horsepower |
| Power per litre: | 39.5 Hp/l [230mm less] |
| Torque: | 136 Nm @ 2800 rpm. |
| Engine Model/Code: | M 121 B I / 121.920 More details about the engine M 121 B I / 121.920 |
| Engine displacement: | 1897 |
| Number of cylinders: | 4 |
| Engine configuration: | Inline |
| Number of valves per cylinder: | 2 |
| Fuel injection system: | Carburettor |
| Engine aspiration: | Naturally aspirated engine |
| Valvetrain: | SOHC |
| Engine oil capacity: | 4 l |
| Engine layout: | Front, Longitudinal |
| Cylinder Bore: | 85 mm mm |
| Piston Stroke: | 83.6 mm mm |
| Compression ratio: | 7.5:1 |
| Performance: | |
|---|---|
| Fuel Type: | Petrol (Gasoline) |
| Fuel consumption (economy) - combined: | 8.9 l/100 km |
| Acceleration 0 - 100 km/h: | 20.5 sec |
| Acceleration 0 - 62 mph: | 20.5 sec |
| Maximum speed: | 140 km/h |
| Weight-to-power ratio: | 16 kg/Hp, 62.5 Hp/tonne |
| Weight-to-torque ratio: | 8.8 kg/Nm, 113.3 Nm/tonne |
| Acceleration 0 - 60 mph: | 19.5 sec |
| Space: | |
|---|---|
| Kerb Weight: | 1200 |
| Max. weight: | 1650 |
| Max load: | 450 |
| Fuel tank capacity: | 56 l |
| Size: | |
|---|---|
| Length: | 4485 mm mm [230mm less] |
| Width: | 1740 mm mm [Same width.] |
| Height: | 1560 mm mm [Same height.] |
| Wheelbase: | 2650 mm mm [170mm less] |
| Front track: | 1430 mm |
| Rear (Back) track: | 1470 mm |
| Powertrain: | |
|---|---|
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears | 4 |
| Transmission type | Manual |
| Front brakes | Drum [bad for performance and cooling.] |
| Rear brakes | Drum [bad for performance and cooling.] |
| Steering type | Cone worm with recirculation balls |
| Front suspension | Double wishbone, Transverse stabilizer |
| Rear suspension | Trailing arm |
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