Spec Sizes

Porsche 911 vs Audi R8 Dimensions & Size Comparison

Comparing 2018 catalog dimensions. Porsche 911 · Audi R8

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

Side view
  • Length177.1 in – 179.6 in
  • Height50.0 in – 51.0 in
  • Wheelbase96.5 in – 96.7 in
  • Ground clearance4.0 in
  • Curb weight3,153 lb – 3,682 lb
Front / width
  • Width71.2 in – 74.0 in
  • Audi R8 width76.4 in

Which is bigger?

  • Length: Audi R8 is 4.0 in shorter (178.3 in vs 174.3 in)
  • Width: Porsche 911 is 3.8 in narrower (72.6 in vs 76.4 in)
  • Height: Porsche 911 is 1.6 in taller (50.5 in vs 48.9 in)
  • Wheelbase: Audi R8 has a 7.8 in longer wheelbase (96.6 in vs 104.4 in)
  • Ground clearance: Audi R8 has 1.7 in more ground clearance (4.0 in vs 5.7 in)
  • Curb weight: Audi R8 is 375 lb heavier (3,418 lb vs 3,792 lb)

Biggest size differences

  1. Ground clearance: Audi R8 has 1.7 in more ground clearance (4.0 in vs 5.7 in)
  2. Curb weight: Audi R8 is 375 lb heavier (3,418 lb vs 3,792 lb)
  3. Wheelbase: Audi R8 has a 7.8 in longer wheelbase (96.6 in vs 104.4 in)
  4. Width: Porsche 911 is 3.8 in narrower (72.6 in vs 76.4 in)
  5. Height: Porsche 911 is 1.6 in taller (50.5 in vs 48.9 in)

Practical verdicts

  • Easier to fit in a short garageAudi R8 — Audi R8 is shorter by 4.0 in Check garage fit for Porsche 911 · garage fit for Audi R8
  • Narrower for tight parkingPorsche 911 — Porsche 911 is narrower by 3.8 in
  • More ground clearanceAudi R8 — Audi R8 has 1.7 in more clearance
  • Smaller exterior footprintPorsche 911 — Based on length × width (Porsche 911)

Dimension comparison

SpecPorsche 911Audi R8Difference
Length178.3 in174.3 in4.0 in
Width72.6 in76.4 in3.8 in
Height50.5 in48.9 in1.6 in
Wheelbase96.6 in104.4 in7.8 in
Ground clearance4.0 in5.7 in1.7 in
Curb weight3,418 lb3,792 lb375 lb

Values use trim midpoints when a model year lists a range (e.g. length 177.1 in – 179.6 in).

Compare by year

Overlapping model years with dimension data.

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