BMW 3 Series vs Peugeot 508

BMW 3 Series
BMW’s compact executive saloon.
VS

Peugeot 508
Peugeot’s executive fastback saloon.
First car
Second car
Pick this one if…
BMW 3 Series
Pick the 3 Series for benchmark handling, efficient engines and a premium cabin in a compact executive sedan.
Best engine: The 320i (petrol) or 320d (diesel).
Read the full guide
Pick this one if…
Peugeot 508
Pick the 508 for a stylish, comfortable executive fastback with strong diesels and PHEV options.
Best engine: The 1.6 PureTech (petrol) or 2.0 BlueHDi (diesel) — post-2023.
Read the full guide
Performance
B48 320i · Petrol vs 1.6 PureTech 225 · Petrol
| BMW 3 Series | Peugeot 508 | |
|---|---|---|
| Power |
184 hp
|
225 hp
Winner
|
| Torque |
300 Nm
|
300 Nm
|
| 0–100 km/h |
7,1 s
Winner
|
7,3 s
|
| Top speed |
240 km/h
|
250 km/h
Winner
|
| Power-to-weight |
125,2 hp/t
|
158,5 hp/t
Winner
|
| CO₂ emissions (WLTP) |
134 g/km
Winner
|
140 g/km
|
| Consumption (WLTP) |
5,9 L/100km
Winner
|
6,0 L/100km
|
Dimensions & space
| BMW 3 Series | Peugeot 508 | |
|---|---|---|
| Boot |
480 L
|
487 L
Winner
|
| Boot (seats folded) |
—
|
1.537 L
|
| Wheelbase |
2,85 m
Winner
|
2,79 m
|
| Length |
4,71 m
|
4,75 m
|
| Width |
1,83 m
|
1,86 m
|
| Height |
1,44 m
|
1,40 m
|
| Seats |
5
|
5
|
Powertrain & tech
| BMW 3 Series | Peugeot 508 | |
|---|---|---|
| Platform | CLAR (rear-wheel-drive base) | PF3 (W23) · EMP2 (R83) |
| Drive | Rear-wheel drive · All-wheel drive | Front-wheel drive · All-wheel drive |
| Engine family | B48 petrol · B47 diesel · plug-in hybrid | 1.2 PureTech · 1.6 THP/PureTech · 1.5/2.0 BlueHDi · Hybrid/PSE |
| Fuel | Petrol · Diesel · Plug-in hybrid | Petrol · Diesel · Plug-in hybrid |
| Transmission | 8-speed automatic (ZF) | 6-speed manual · EAT6/EAT8 automatic |
| Euro standard | Euro 6d-TEMP (early) · Euro 6d (later) | Euro 5/6 (W23) · Euro 6/6d (R83) |
| LEZ access | Euro 6 diesel allowed in the LEZ (Brussels/Antwerp/Ghent) | Euro 6/6d petrol/diesel and PHEV allowed in the LEZ |
Reliability & watch-outs
Known issues
BMW 3 Series
- Early iDrive/infotainment quirks
- DPF on diesels doing mainly short trips
- Timing chain rare but known on B48
Peugeot 508
- 1.6 THP/PureTech (early): timing chain
- 1.5 BlueHDi: AdBlue and chain on early units
- 2.2 HDi (W23): bi-turbo needs checking
Pros
BMW 3 Series
- Benchmark handling (rear-drive base)
- Efficient, strong B48/B47 engines
- Excellent iDrive 7 infotainment
Peugeot 508
- Stylish fastback design
- Comfortable and quiet
- Strong diesels and PHEV options
Cons
BMW 3 Series
- Firm ride on M Sport suspension
- Rear seat less roomy than some rivals
Peugeot 508
- Boot smaller than classic saloons
- Low driving position
Compare specific generations
Belgian taxes & LEZ
Region
Fuel
Euro norm
First registration
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For sale at dealers
BMW 3 Series
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