BMW 3 Series BMW i4

Two cars on the same rows. The figures are all here, with their sources, so you can read them yourself and decide what matters.

Comparison table

22 of these rows differ. They sit at the top. Figures come straight from the makers, indicative. A bullet (•) marks a differing row.
BMW 3 Series BMW i4
Fuel (differs) Diesel Electric
Model years (differs) 2019-now 2021-now
From (indicative) (differs) € 52,900 € 61,900
Status Available Available
RatingsRating figures: higher is better (scale 0-100). What each category measures is explained on the methodology page.
Reliability (differs) 73/100 72/100
Efficiency (differs) 80/100 76/100
Value retention (differs) 70/100 n/a
Sustainability (environmental impact) (differs) 34/100 79/100
Practicality 72/100 72/100
Specifications
Body style (differs) Sedan Liftback
Power (hp) (differs) 190 340
0–100 km/h (s) (differs) 6.9 5.7
Top speed (km/h) (differs) 235 190
Length (mm) (differs) 4713 4783
Width (mm) (differs) 1827 1852
Height (mm) (differs) 1440 1448
Kerb weight (kg) (differs) 1645 2125
Diesel consumption (l/100km) (differs) 4.8
Max. towing weight, braked (kg) (differs) 1800 1600
Boot (l) (differs) 480 470
Range (WLTP, km) (differs) 590
Battery (kWh) (differs) 81
Fast charging, public charger (kW) (differs) 205
Consumption WLTP (kWh/100km) (differs) 15
Seats 5 5
Doors 5 5

OEM datasheets + RDW + ADAC (see methodology); rating and reference dates are listed per figure

Show sources and reference dates per rating
  • BMW 3 Series · Reliability: ADAC breakdown statistics 2025 segment + owner reviews + RDW recalls · reference date 2026-05-18
  • BMW 3 Series · Efficiency: Owner-reported diesel consumption vs WLTP 4.8 l/100km, public forums · reference date 2026-05-18
  • BMW 3 Series · Practicality: Boot 480 l + towing weight 1,800 kg vs segment (manufacturer figure, indicative) · reference date 2026-05-18
  • BMW 3 Series · Value retention: Residual-value indication, valuation guides segment (historical average; diesel demand uncertain) · reference date 2026-05-18
  • BMW 3 Series · Sustainability (environmental impact): WLTP consumption manufacturer figure diesel + exhaust emissions + environmental-zone impact (low-emission zones EU cities), reference date 2026-05-21 · reference date 2026-05-21
  • BMW i4 · Sustainability (environmental impact): WLTP consumption + BMW battery warranty (8 yr/160,000 km) + LCA indication ICCT 2024 · reference date 2026-05-18
  • BMW i4 · Reliability: ADAC breakdown statistics 2025 (segment) + aggregated owner reviews + recall data RDW · reference date 2026-05-18
  • BMW i4 · Efficiency: Owner-reported real-world kWh/100km vs WLTP (public forums) · reference date 2026-05-18
  • BMW i4 · Value retention: Residual value of electric premium sedans volatile; insufficient stable data per trim · reference date 2026-05-18
  • BMW i4 · Practicality: boot 470 l VDA figure + 5 seats + 5 doors + braked towing weight 1600 kg manufacturer figure, reference date 2026-05-21 · reference date 2026-05-21

Who they are

A short write-up on each car, one paragraph apiece. We describe them on their own terms rather than picking a winner.

Profile · 320d (G20, LCI facelift 2022)

BMW 3 Series

Rear-wheel drive D-segment sedan with the 2.0 four-cylinder turbodiesel plus 48V mild hybrid. WLTP around 4.8 l/100km (manufacturer figure, indicative); on long distance owners report 5-5.5 l/100km (public forums, not measured by us). Braked towing weight 1,800 kg.

Profile · G26 eDrive40 (2024)

BMW i4

Electric liftback on the 4 Series Gran Coupé body, rear-wheel drive in the eDrive40. WLTP around 590 km (manufacturer figure, indicative); owners report substantially lower in winter (public forums, not measured by us). Braked towing weight 1,600 kg.

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No tax or financial advice. Every figure shows its source and reference date. Always compare with an independent adviser and the official source. Source: OEM datasheets + RDW + ADAC (see methodology); rating and reference dates are listed per figure.