Spec Sizes

Porsche 911 vs Audi RS 5 Dimensions & Size Comparison

Comparing 2021 catalog dimensions. Porsche 911 · Audi RS 5

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

Side view
  • Length177.9 in – 178.6 in
  • Height51.1 in – 51.3 in
  • Wheelbase96.5 in
  • Curb weight3,354 lb – 3,790 lb
Front / width
  • Width72.9 in – 74.9 in
  • Audi RS 5 width73.5 in

Which is bigger?

  • Length: Porsche 911 is 8.9 in shorter (178.3 in vs 187.2 in)
  • Width: Audi RS 5 is 0.4 in narrower (73.9 in vs 73.5 in)
  • Height: Audi RS 5 is 3.3 in taller (51.2 in vs 54.5 in)
  • Wheelbase: Audi RS 5 has a 13.6 in longer wheelbase (96.5 in vs 110.1 in)
  • Curb weight: Audi RS 5 is 452 lb heavier (3,572 lb vs 4,024 lb)

Biggest size differences

  1. Wheelbase: Audi RS 5 has a 13.6 in longer wheelbase (96.5 in vs 110.1 in)
  2. Curb weight: Audi RS 5 is 452 lb heavier (3,572 lb vs 4,024 lb)
  3. Height: Audi RS 5 is 3.3 in taller (51.2 in vs 54.5 in)
  4. Length: Porsche 911 is 8.9 in shorter (178.3 in vs 187.2 in)
  5. Width: Audi RS 5 is 0.4 in narrower (73.9 in vs 73.5 in)

Practical verdicts

  • Easier to fit in a short garagePorsche 911 — Porsche 911 is shorter by 8.9 in Check garage fit for Porsche 911 · garage fit for Audi RS 5
  • Narrower for tight parkingAudi RS 5 — Audi RS 5 is narrower by 0.4 in
  • Smaller exterior footprintPorsche 911 — Based on length × width (Porsche 911)

Dimension comparison

SpecPorsche 911Audi RS 5Difference
Length178.3 in187.2 in8.9 in
Width73.9 in73.5 in0.4 in
Height51.2 in54.5 in3.3 in
Wheelbase96.5 in110.1 in13.6 in
Curb weight3,572 lb4,024 lb452 lb

Values use trim midpoints when a model year lists a range (e.g. length 177.9 in – 178.6 in).

Compare by year

Overlapping model years with dimension data.

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