Audi A1 Sportback Audi A4 Avant

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

19 of these rows differ. They sit at the top. Figures come straight from the makers, indicative. A bullet (•) marks a differing row.
Audi A1 Sportback Audi A4 Avant
Model years (differs) 2018-now 2019-now
From (indicative) (differs) € 29,900 € 51,950
Status Available Available
Fuel Petrol Petrol
RatingsRating figures: higher is better (scale 0-100). What each category measures is explained on the methodology page.
Reliability (differs) 72/100 74/100
Efficiency (differs) 73/100 65/100
Practicality (differs) 60/100 76/100
Value retention (differs) n/a 67/100
Sustainability (environmental impact) (differs) 44/100 40/100
Specifications
Body style (differs) Hatchback Estate
Power (hp) (differs) 110 150
0–100 km/h (s) (differs) 10.6 9.2
Top speed (km/h) (differs) 200 220
Length (mm) (differs) 4029 4762
Width (mm) (differs) 1740 1847
Height (mm) (differs) 1409 1435
Kerb weight (kg) (differs) 1205 1575
Consumption WLTP (l/100km) (differs) 5.4 6.3
Petrol consumption (l/100km) (differs) 5.4
Max. towing weight, braked (kg) (differs) 1000 1900
Boot (l) (differs) 335 495
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
  • Audi A1 Sportback · Reliability: ADAC breakdown statistics 2025 (segment) + aggregated owner reviews + RDW recall data · reference date 2026-05-18
  • Audi A1 Sportback · Efficiency: Owner-reported petrol consumption vs WLTP 5.4 l/100km (public forums) · reference date 2026-05-18
  • Audi A1 Sportback · Practicality: Boot 335 l + towing weight 1,000 kg vs B-segment (manufacturer figure, indicative) · reference date 2026-05-18
  • Audi A1 Sportback · Value retention: Insufficient stable residual-value data per trim within the GB generation · reference date 2026-05-18
  • Audi A1 Sportback · Sustainability (environmental impact): WLTP consumption manufacturer figure petrol + exhaust emissions (Euro-6d standard on current models), reference date 2026-05-21 · reference date 2026-05-21
  • Audi A4 Avant · Reliability: ADAC breakdown statistics 2025 (segment) + aggregated owner reviews + RDW recall data · reference date 2026-05-18
  • Audi A4 Avant · Efficiency: Owner-reported petrol consumption vs WLTP 6.3 l/100km (public forums) · reference date 2026-05-18
  • Audi A4 Avant · Practicality: Boot 495 l + towing weight 1,900 kg vs D-segment estate (manufacturer figure, indicative) · reference date 2026-05-18
  • Audi A4 Avant · Value retention: Residual-value indication from D-segment-premium valuation guides (historical average) · reference date 2026-05-18
  • Audi A4 Avant · Sustainability (environmental impact): WLTP consumption manufacturer figure petrol + exhaust emissions (Euro-6d norm on current models), 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 · GB (2018-, 30 TFSI)

Audi A1 Sportback

B-segment hatchback on the MQB-A0 platform, shared with the Volkswagen Polo and Seat Ibiza. Entry is the 30 TFSI three-cylinder with 110 hp; above it sits the 35 TFSI with 150 hp. WLTP around 5.4 l/100km (manufacturer figure, indicative); owners report mixed 6-7 l/100km (public forums, not measured by us). Boot 335 l is just above average for the class.

Profile · B9 (facelift, 35 TFSI)

Audi A4 Avant

D-segment estate on the MLB-evo platform; the B9 generation got a facelift in 2019 and remains the base until the A5 name change from 2025. Entry is the 35 TFSI, a 2.0 four-cylinder petrol with 48V mild hybrid and 150 hp. WLTP around 6.3 l/100km (manufacturer figure, indicative); owners report 7-8 l/100km mixed (public forums, not measured by us).

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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.