Spec Sizes

Porsche 911 vs Audi S3 Dimensions & Size Comparison

Comparing 2022 catalog dimensions. Porsche 911 · Audi S3

Same scale for both vehicles. Generic silhouette — proportional to measured length, height, width, wheelbase, and clearance.

Side view
  • Length177.9 in – 180.0 in
  • Height50.4 in – 51.3 in
  • Wheelbase96.5 in – 96.7 in
  • Curb weight3,164 lb – 3,790 lb
Front / width
  • Width72.9 in – 74.9 in
  • Audi S3 width71.5 in

Which is bigger?

  • Length: Audi S3 is 1.6 in shorter (178.9 in vs 177.3 in)
  • Width: Audi S3 is 2.4 in narrower (73.9 in vs 71.5 in)
  • Height: Audi S3 is 4.9 in taller (50.8 in vs 55.7 in)
  • Wheelbase: Audi S3 has a 6.9 in longer wheelbase (96.6 in vs 103.5 in)
  • Curb weight: Audi S3 is 61 lb heavier (3,477 lb vs 3,538 lb)

Biggest size differences

  1. Height: Audi S3 is 4.9 in taller (50.8 in vs 55.7 in)
  2. Wheelbase: Audi S3 has a 6.9 in longer wheelbase (96.6 in vs 103.5 in)
  3. Width: Audi S3 is 2.4 in narrower (73.9 in vs 71.5 in)
  4. Curb weight: Audi S3 is 61 lb heavier (3,477 lb vs 3,538 lb)
  5. Length: Audi S3 is 1.6 in shorter (178.9 in vs 177.3 in)

Practical verdicts

  • Easier to fit in a short garageAudi S3 — Audi S3 is shorter by 1.6 in Check garage fit for Porsche 911 · garage fit for Audi S3
  • Narrower for tight parkingAudi S3 — Audi S3 is narrower by 2.4 in
  • Smaller exterior footprintAudi S3 — Based on length × width (Audi S3)

Dimension comparison

SpecPorsche 911Audi S3Difference
Length178.9 in177.3 in1.6 in
Width73.9 in71.5 in2.4 in
Height50.8 in55.7 in4.9 in
Wheelbase96.6 in103.5 in6.9 in
Curb weight3,477 lb3,538 lb61 lb

Values use trim midpoints when a model year lists a range (e.g. length 177.9 in – 180.0 in).

Compare by year

Overlapping model years with dimension data.

Already own one of these cars?

Jump to maintenance sizes on the vehicle page — tires, wipers, battery, and oil when present in the catalog.