Spec Sizes

Porsche 911 vs Audi R8 Dimensions & Size Comparison

Comparing 2008 catalog dimensions. Porsche 911 · Audi R8

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

Side view
  • Length175.6 in – 176.9 in
  • Height50.4 in – 51.6 in
  • Wheelbase92.5 in – 92.9 in
  • Ground clearance3.8 in – 4.3 in
  • Curb weight3,031 lb – 3,494 lb
Front / width
  • Width71.2 in – 72.9 in
  • Audi R8 width75.0 in

Which is bigger?

  • Length: Audi R8 is 1.8 in shorter (176.3 in vs 174.5 in)
  • Width: Porsche 911 is 2.9 in narrower (72.1 in vs 75.0 in)
  • Height: Porsche 911 is 1.7 in taller (51.0 in vs 49.3 in)
  • Wheelbase: Audi R8 has a 11.6 in longer wheelbase (92.7 in vs 104.3 in)
  • Curb weight: Audi R8 is 343 lb heavier (3,263 lb vs 3,605 lb)

Biggest size differences

  1. Wheelbase: Audi R8 has a 11.6 in longer wheelbase (92.7 in vs 104.3 in)
  2. Curb weight: Audi R8 is 343 lb heavier (3,263 lb vs 3,605 lb)
  3. Width: Porsche 911 is 2.9 in narrower (72.1 in vs 75.0 in)
  4. Height: Porsche 911 is 1.7 in taller (51.0 in vs 49.3 in)
  5. Length: Audi R8 is 1.8 in shorter (176.3 in vs 174.5 in)

Practical verdicts

  • Easier to fit in a short garageAudi R8 — Audi R8 is shorter by 1.8 in Check garage fit for Porsche 911 · garage fit for Audi R8
  • Narrower for tight parkingPorsche 911 — Porsche 911 is narrower by 2.9 in
  • Smaller exterior footprintPorsche 911 — Based on length × width (Porsche 911)

Dimension comparison

SpecPorsche 911Audi R8Difference
Length176.3 in174.5 in1.8 in
Width72.1 in75.0 in2.9 in
Height51.0 in49.3 in1.7 in
Wheelbase92.7 in104.3 in11.6 in
Ground clearance4.0 in——
Curb weight3,263 lb3,605 lb343 lb

Values use trim midpoints when a model year lists a range (e.g. length 175.6 in – 176.9 in).

Compare by year

Overlapping model years with dimension data.

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