The Peugeot 308 SW III (Phase I), launched in 2021, represents the third generation of Peugeot’s compact station wagon, known as the 308 SW. This model is particularly significant as it embodies Peugeot’s move towards electrification with the introduction of mild-hybrid technology. While not directly sold in the United States, the 308 SW is a popular vehicle in Europe, competing with models like the Volkswagen Golf Variant and Skoda Octavia Combi. It caters to buyers seeking a practical, fuel-efficient, and stylish family vehicle. The SW designation signifies “Station Wagon,” highlighting its focus on cargo capacity and versatility.
Peugeot 308 SW III: A Detailed Overview
The 308 SW III builds upon the success of its predecessors, offering a refined driving experience, modern technology, and a spacious interior. The Phase I models, produced from September 2023 to March 2025, feature a 1.2-liter turbocharged three-cylinder engine coupled with a 48-volt mild-hybrid system, designated as e-DSC. This powertrain aims to improve fuel economy and reduce emissions while maintaining acceptable performance levels. The SW body style provides a larger cargo area compared to the hatchback version, making it ideal for families and those requiring extra space for luggage or equipment.
Engine & Performance
The heart of the Peugeot 308 SW III 1.2 (136 Hp) Mild Hybrid e-DSC is a 1.2-liter inline three-cylinder gasoline engine, internally coded EB2LTD. This engine produces 136 horsepower at 5500 rpm and 230 Nm (169.64 lb.-ft.) of torque at 1750 rpm. The engine benefits from direct fuel injection and a turbocharger with an intercooler, enhancing both power and efficiency. The “Mild Hybrid e-DSC” system incorporates a 48-volt lithium-ion battery with a gross capacity of 0.89 kWh and a 48V electric motor delivering 21 Hp at 4264 rpm and 51 Nm (37.62 lb.-ft.) of torque. This electric motor assists the internal combustion engine during acceleration and allows for regenerative braking, capturing energy that would otherwise be lost. The powertrain is paired with a 6-speed automatic transmission (e-DSC) and delivers power to the front wheels. The combined effect results in a maximum speed of 210 km/h (130.49 mph) and a weight-to-power ratio of 10.6 kg/Hp. Fuel consumption figures, measured using the WLTP cycle, range from 4.5 l/100 km (52.3 US mpg) on the highway to 5.7 l/100 km (41.3 US mpg) at very high speeds, with a combined consumption of 5.1 l/100 km (46.1 US mpg).
Design & Features
The Peugeot 308 SW III is a five-door, five-seat station wagon (estate) characterized by its sleek and modern design. The exterior features Peugeot’s signature styling cues, including a prominent grille, sharp headlights, and a dynamic silhouette. The SW body style extends the roofline rearward, creating a larger cargo area. Inside, the 308 SW boasts a high-quality interior with a focus on ergonomics and technology. Key features include a digital instrument cluster (Peugeot i-Cockpit), a touchscreen infotainment system, and advanced driver-assistance systems (ADAS). Safety features are comprehensive, including ABS, electronic stability control, and multiple airbags. The SW offers a trunk (boot) space ranging from 548 liters (19.35 cu. ft.) with the rear seats up to 1574 liters (55.59 cu. ft.) with the seats folded down. The vehicle’s kerb weight ranges from 1435 to 1578 kg (3163.63 – 3478.89 lbs.), depending on the specific configuration. Practicality is further enhanced by features like a 52-liter (13.74 US gal) fuel tank and a maximum roof load capacity of 85 kg (187.39 lbs.).
Technical Specifications
| Brand | Peugeot |
| Model | 308 |
| Generation | 308 SW III (Phase I, 2021) |
| Type (Engine) | 1.2 (136 Hp) Mild Hybrid e-DSC |
| Start of production | September, 2023 |
| End of production | March, 2025 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption at Low speed (WLTP) | 4.9 l/100 km (48 US mpg) |
| Fuel consumption at Medium speed (WLTP) | 5.1 l/100 km (46.1 US mpg) |
| Fuel consumption at high speed (WLTP) | 4.5 l/100 km (52.3 US mpg) |
| Fuel consumption at very high speed (WLTP) | 5.7 l/100 km (41.3 US mpg) |
| Combined fuel consumption (WLTP) | 5.1 l/100 km (46.1 US mpg) |
| CO2 emissions (WLTP) | 115 g/km |
| Fuel Type | Petrol (Gasoline) |
| Maximum speed | 210 km/h (130.49 mph) |
| Emission standard | Euro 6e |
| Weight-to-power ratio | 10.6 kg/Hp |
| Weight-to-torque ratio | 6.2 kg/Nm |
| Gross battery capacity | 0.89 kWh |
| Battery voltage | 48 V |
| Battery technology | Lithium-ion (Li-Ion) |
| Electric motor power | 21 Hp @ 4264 rpm |
| Electric motor Torque | 51 Nm (37.62 lb.-ft.) |
| Power | 136 Hp @ 5500 rpm |
| Torque | 230 Nm @ 1750 rpm (169.64 lb.-ft. @ 1750 rpm) |
| Engine displacement | 1199 cm3 (73.17 cu. in.) |
| Number of cylinders | 3 |
| Kerb Weight | 1435-1578 kg (3163.63 – 3478.89 lbs.) |
| Max. weight | 2010 kg (4431.29 lbs.) |
| Trunk (boot) space – minimum | 548 l (19.35 cu. ft.) |
| Trunk (boot) space – maximum | 1574 l (55.59 cu. ft.) |
| Fuel tank capacity | 52 l (13.74 US gal) |
| Length | 4636 mm (182.52 in.) |
| Width | 1852 mm (72.91 in.) |
| Height | 1442 mm (56.77 in.) |
| Wheelbase | 2732 mm (107.56 in.) |
| Number of gears | 6 |
| Gearbox type | Automatic transmission e-DSC |
The Peugeot 308 SW III 1.2 (136 Hp) Mild Hybrid e-DSC represents a compelling option in the European compact station wagon segment. Its blend of fuel efficiency, practicality, and modern technology makes it a popular choice for families and individuals seeking a versatile and stylish vehicle.


