Audi R8 vs Porsche 911 Dimensions & Size Comparison
Comparing 2022 catalog dimensions. Audi R8 · Porsche 911
- Length174.4 in
- Height48.7 in – 48.9 in
- Wheelbase104.3 in
- Curb weight3,594 lb – 3,913 lb
- Width76.4 in
- Porsche 911 width72.9 in – 74.9 in
Which is bigger?
- Length: Audi R8 is 4.5 in shorter (174.4 in vs 178.9 in)
- Width: Porsche 911 is 2.5 in narrower (76.4 in vs 73.9 in)
- Height: Porsche 911 is 2.0 in taller (48.8 in vs 50.8 in)
- Wheelbase: Audi R8 has a 7.7 in longer wheelbase (104.3 in vs 96.6 in)
- Curb weight: Audi R8 is 277 lb heavier (3,754 lb vs 3,477 lb)
Biggest size differences
- Wheelbase: Audi R8 has a 7.7 in longer wheelbase (104.3 in vs 96.6 in)
- Curb weight: Audi R8 is 277 lb heavier (3,754 lb vs 3,477 lb)
- Height: Porsche 911 is 2.0 in taller (48.8 in vs 50.8 in)
- Width: Porsche 911 is 2.5 in narrower (76.4 in vs 73.9 in)
- Length: Audi R8 is 4.5 in shorter (174.4 in vs 178.9 in)
Practical verdicts
- Easier to fit in a short garageAudi R8 — Audi R8 is shorter by 4.5 in Check garage fit for Audi R8 · garage fit for Porsche 911
- Narrower for tight parkingPorsche 911 — Porsche 911 is narrower by 2.5 in
Dimension comparison
| Spec | Audi R8 | Porsche 911 | Difference |
|---|---|---|---|
| Length | 174.4 in | 178.9 in | 4.5 in |
| Width | 76.4 in | 73.9 in | 2.5 in |
| Height | 48.8 in | 50.8 in | 2.0 in |
| Wheelbase | 104.3 in | 96.6 in | 7.7 in |
| Curb weight | 3,754 lb | 3,477 lb | 277 lb |
Values use trim midpoints when a model year lists a range.
Compare by year
Overlapping model years with dimension data.
Already own one of these cars?
Jump to maintenance sizes on the vehicle page — tires, wipers, battery, and oil when present in the catalog.