Porsche 911 vs Audi R8 Dimensions & Size Comparison
Comparing 2009 catalog dimensions. Porsche 911 · Audi R8
- Length175.6 in – 176.3 in
- Height51.2 in – 51.6 in
- Wheelbase92.5 in
- Ground clearance3.8 in – 4.3 in
- Curb weight3,075 lb – 3,494 lb
- Width71.2 in – 72.9 in
- Audi R8 width75.0 in
Which is bigger?
- Length: Audi R8 is 1.4 in shorter (175.9 in vs 174.5 in)
- Width: Porsche 911 is 2.9 in narrower (72.1 in vs 75.0 in)
- Height: Porsche 911 is 2.1 in taller (51.4 in vs 49.3 in)
- Wheelbase: Audi R8 has a 11.8 in longer wheelbase (92.5 in vs 104.3 in)
- Curb weight: Audi R8 is 321 lb heavier (3,285 lb vs 3,605 lb)
Biggest size differences
- Wheelbase: Audi R8 has a 11.8 in longer wheelbase (92.5 in vs 104.3 in)
- Curb weight: Audi R8 is 321 lb heavier (3,285 lb vs 3,605 lb)
- Height: Porsche 911 is 2.1 in taller (51.4 in vs 49.3 in)
- Width: Porsche 911 is 2.9 in narrower (72.1 in vs 75.0 in)
- Length: Audi R8 is 1.4 in shorter (175.9 in vs 174.5 in)
Practical verdicts
- Easier to fit in a short garageAudi R8 — Audi R8 is shorter by 1.4 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
| Spec | Porsche 911 | Audi R8 | Difference |
|---|---|---|---|
| Length | 175.9 in | 174.5 in | 1.4 in |
| Width | 72.1 in | 75.0 in | 2.9 in |
| Height | 51.4 in | 49.3 in | 2.1 in |
| Wheelbase | 92.5 in | 104.3 in | 11.8 in |
| Ground clearance | 4.0 in | — | — |
| Curb weight | 3,285 lb | 3,605 lb | 321 lb |
Values use trim midpoints when a model year lists a range (e.g. length 175.6 in – 176.3 in).
Compare by year
Overlapping model years with dimension data.
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