Spec Sizes

Porsche 911 vs Audi R8 Dimensions & Size Comparison

Comparing 2020 catalog dimensions. Porsche 911 · Audi R8

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

Side view
  • Length177.9 in
  • Height51.2 in
  • Wheelbase96.5 in
  • Ground clearance4.0 in
  • Curb weight3,382 lb – 3,641 lb
Front / width
  • Width72.9 in
  • Audi R8 width76.4 in

Which is bigger?

  • Length: Audi R8 is 3.6 in shorter (177.9 in vs 174.3 in)
  • Width: Porsche 911 is 3.5 in narrower (72.9 in vs 76.4 in)
  • Height: Porsche 911 is 2.3 in taller (51.2 in vs 48.9 in)
  • Wheelbase: Audi R8 has a 7.9 in longer wheelbase (96.5 in vs 104.4 in)
  • Ground clearance: essentially the same

Biggest size differences

  1. Wheelbase: Audi R8 has a 7.9 in longer wheelbase (96.5 in vs 104.4 in)
  2. Height: Porsche 911 is 2.3 in taller (51.2 in vs 48.9 in)
  3. Width: Porsche 911 is 3.5 in narrower (72.9 in vs 76.4 in)
  4. Length: Audi R8 is 3.6 in shorter (177.9 in vs 174.3 in)

Practical verdicts

  • Easier to fit in a short garageAudi R8 — Audi R8 is shorter by 3.6 in Check garage fit for Porsche 911 · garage fit for Audi R8
  • Narrower for tight parkingPorsche 911 — Porsche 911 is narrower by 3.5 in
  • Smaller exterior footprintPorsche 911 — Based on length × width (Porsche 911)

Dimension comparison

SpecPorsche 911Audi R8Difference
Length177.9 in174.3 in3.6 in
Width72.9 in76.4 in3.5 in
Height51.2 in48.9 in2.3 in
Wheelbase96.5 in104.4 in7.9 in
Ground clearance4.0 in4.0 in0.0 in
Curb weight3,512 lb——

Values use trim midpoints when a model year lists a range.

Compare by year

Overlapping model years with dimension data.

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