Both models have their strengths – but which one suits you more?
Compare performance, efficiency, price and space directly: Fiat 600 or Mercedes B Class?
Interest in compact vehicles has surged, with consumers demanding greater efficiency and enhanced features. The Fiat 600, an SUV with a burgeoning reputation, and the established Mercedes B-Klasse MPV, are two market contenders. Here's an in-depth look at how these two vehicles stack up against each other on technical specs and innovations.
The Fiat 600 offers both petrol Mild Hybrid Electric Vehicle (MHEV) and fully electric options. Engine power ranges from 100 to 156 HP, complemented by notable torque figures of up to 260 Nm. Acceleration times span from 10.5 to 8.5 seconds for 0-100 km/h, with top speeds reaching up to 200 km/h in electric mode. With a battery capacity of 51 kWh, its electric variant promises a commendable range of 409 km per charge.
In contrast, the Mercedes B-Klasse comes with diverse engine configurations: petrol MHEV, diesel, and plug-in hybrid. This diversity is reflected in a horsepower range from 116 to 238 HP and torque peaking at a strong 450 Nm. The acceleration performance is slightly brisker than the Fiat, with the quickest model achieving 0-100 km/h in just 6.5 seconds and reaching top speeds up to 250 km/h. The plug-in hybrid version offers a shorter electric range of 83 km, backed by a 12.9 kWh battery.
Fiat 600's petrol MHEV variant records a consumption of 4.8 L/100km, while its electric option consumes 15.1 kWh/100km. CO2 emissions are rated between 0 and 109 g/km, making it a stalwart for environmentally conscious drivers with efficiency classes ranging from A to C.
The B-Klasse, depending on the engine, sees fuel consumption between 0.8 and 7.1 L/100km. Its CO2 emissions vary widely from an impressive 18 to 160 g/km, offering emissions classes stretching from B to F, highlighting the option for both greener choices and traditional combustion efficiency.
The Fiat 600 stands 4178 mm in length, 1779 mm in width, and 1523-1525 mm in height. Despite being compact, it offers a considerable trunk capacity of up to 385 liters, suitable for small families or city life.
The slightly more substantial B-Klasse measures 4419 mm in length, 1796 mm in width, and 1562 mm in height. With a larger trunk volume of up to 455 liters, it provides more room for cargo, making it a go-to for more substantial hauling needs or larger families.
The Fiat 600 offers front-wheel drive and an automatic transmission with a dual-clutch system. Its lightweight design, with curb weights ranging from 1355 to 1595 kg, ensures a nimble urban driving experience.
Mercedes' B-Klasse presents both front and all-wheel drive options, also employing a dual-clutch automatic transmission. With additional weight, ranging up to 1745 kg, it maintains stability and comfort on longer journeys, appealing to those seeking luxury and practicality.
The Fiat 600 and Mercedes B-Klasse serve distinct needs within the compact vehicle segment. The Fiat, with its efficient and environmentally-friendly variants, caters to urban dwellers and eco-conscious drivers. Meanwhile, the Mercedes B-Klasse, with its expanded engine choices and larger cargo room, offers versatility and higher performance for those longer trips or family outings. Both vehicles provide attractive features—but choosing between them will depend significantly on personal priorities and lifestyle needs.
Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.
Fiat 600 has a clearly advantage in terms of price – it starts at 21800 £, while the Mercedes B Class costs 33100 £. That’s a price difference of around 11281 £.
Fuel consumption also shows a difference: Mercedes B Class manages with 2.50 L and is therefore significantly more efficient than the Fiat 600 with 4.80 L. The difference is about 2.30 L per 100 km.
As for range, the Fiat 600 performs clearly better – achieving up to 409 km, about 326 km more than the Mercedes B Class.
Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.
When it comes to engine power, the Mercedes B Class has a clearly perceptible edge – offering 238 HP compared to 156 HP. That’s roughly 82 HP more horsepower.
In acceleration from 0 to 100 km/h, the Mercedes B Class is distinct quicker – completing the sprint in 6.50 s, while the Fiat 600 takes 8.50 s. That’s about 2 s faster.
In terms of top speed, the Mercedes B Class performs to a small extent better – reaching 250 km/h, while the Fiat 600 tops out at 200 km/h. The difference is around 50 km/h.
There’s also a difference in torque: Mercedes B Class pulls significantly stronger with 450 Nm compared to 260 Nm. That’s about 190 Nm difference.
Whether family car or daily driver – which one offers more room, flexibility and comfort?
Both vehicles offer seating for 5 people.
In curb weight, Fiat 600 is slight lighter – 1355 kg compared to 1405 kg. The difference is around 50 kg.
In terms of boot space, the Mercedes B Class offers slightly more room – 455 L compared to 385 L. That’s a difference of about 70 L.
In maximum load capacity, the Mercedes B Class performs a bit better – up to 1540 L, which is about 284 L more than the Fiat 600.
When it comes to payload, Mercedes B Class noticeable takes the win – 550 kg compared to 430 kg. That’s a difference of about 120 kg.
Overall, the Mercedes B Class shows itself to be outperforms in nearly all aspects and secures the title of DriveDuel Champion.
It convinces with the more balanced overall package and proves to be the more versatile choice for everyday use.
@ Mercedes-Benz Group Media
The Fiat 600 is small, cheeky and utterly charming, a pocket-sized Italian that packs more personality than its size suggests. Ideal for city buyers who want fuss-free motoring with a playful driving character, it puts smiles ahead of spreadsheets.
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@ Fiat / Stellantis Media
@ Fiat / Stellantis Media
The Mercedes B-Class is a smart, grown-up compact people carrier that dresses everyday practicality in a near‑premium polish, perfect for buyers who want comfort and a classy badge without the theatrics. It won’t set your pulse racing on a back road, but it will make school runs, commutes and grocery hauls feel pleasantly civilized — a reliable, slightly posh companion for real life.
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@ Mercedes-Benz Group Media
@ Mercedes-Benz Group Media
@ Mercedes-Benz Group Media
@ Mercedes-Benz Group Media
@ Mercedes-Benz Group Media
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@ Fiat / Stellantis Media
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@ Mercedes-Benz Group Media
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Costs and Consumption |
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Price
21800 - 31300 £
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Price
33100 - 52500 £
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Consumption L/100km
4.80 L
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Consumption L/100km
2.5 - 6.9 L
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Consumption kWh/100km
15.10 kWh
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Consumption kWh/100km
-
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Electric Range
409 km
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Electric Range
83 km
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Battery Capacity
51 - 52 kWh
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Battery Capacity
12.90 kWh
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co2
0 - 109 g/km
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co2
56 - 156 g/km
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Fuel tank capacity
44 L
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Fuel tank capacity
35 - 51 L
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Dimensions and Body |
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|---|---|
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Body Type
SUV
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Body Type
MPV
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Seats
5
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Seats
5
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Doors
5
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Doors
5
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Curb weight
1355 - 1595 kg
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Curb weight
1405 - 1745 kg
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Trunk capacity
360 - 385 L
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Trunk capacity
405 - 455 L
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Length
4178 mm
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Length
4419 mm
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Width
1779 mm
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Width
1796 mm
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Height
1523 - 1525 mm
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Height
1562 mm
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Max trunk capacity
1231 - 1256 L
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Max trunk capacity
1440 - 1540 L
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Payload
427 - 430 kg
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Payload
505 - 550 kg
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Engine and Performance |
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Engine Type
Electric, Petrol MHEV
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Engine Type
Plugin Hybrid, Petrol MHEV, Diesel
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Transmission
Automatic
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Transmission
Automatic
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Transmission Detail
Reduction Gearbox, Dual-Clutch Automatic
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Transmission Detail
Dual-Clutch Automatic
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Drive Type
Front-Wheel Drive
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Drive Type
Front-Wheel Drive, All-Wheel Drive
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Power HP
110 - 156 HP
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Power HP
116 - 238 HP
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Acceleration 0-100km/h
8.5 - 10.5 s
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Acceleration 0-100km/h
6.5 - 10 s
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Max Speed
150 - 200 km/h
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Max Speed
200 - 250 km/h
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Torque
205 - 260 Nm
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Torque
200 - 450 Nm
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Number of Cylinders
3
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Number of Cylinders
4
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Power kW
81 - 115 kW
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Power kW
85 - 175 kW
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Engine capacity
1199 cm3
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Engine capacity
1332 - 1991 cm3
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General |
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Model Year
2023 - 2025
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Model Year
2024 - 2025
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CO2 Efficiency Class
A, C
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CO2 Efficiency Class
B, D, E, F
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Brand
Fiat
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Brand
Mercedes-Benz
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The Fiat 600 is available as Front-Wheel Drive.
The prices and data displayed are estimates based on German list prices and may vary by country. This information is not legally binding.
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