Porsche 911 vs Audi TT RS Dimensions & Size Comparison
Comparing 2017 vs 2021 catalog dimensions. Porsche 911 · Audi TT RS
- Length177.1 in – 177.4 in
- Height50.7 in – 51.0 in
- Wheelbase96.5 in
- Ground clearance4.0 in
- Curb weight3,153 lb – 3,682 lb
- Width71.2 in – 74.0 in
- Audi TT RS width72.1 in
Which is bigger?
- Length: Audi TT RS is 12.3 in shorter (177.3 in vs 165.0 in)
- Width: Audi TT RS is 0.5 in narrower (72.6 in vs 72.1 in)
- Height: Audi TT RS is 2.0 in taller (50.9 in vs 52.9 in)
- Wheelbase: Audi TT RS has a 2.1 in longer wheelbase (96.5 in vs 98.6 in)
- Curb weight: Porsche 911 is 89 lb heavier (3,418 lb vs 3,329 lb)
Biggest size differences
- Length: Audi TT RS is 12.3 in shorter (177.3 in vs 165.0 in)
- Height: Audi TT RS is 2.0 in taller (50.9 in vs 52.9 in)
- Curb weight: Porsche 911 is 89 lb heavier (3,418 lb vs 3,329 lb)
- Wheelbase: Audi TT RS has a 2.1 in longer wheelbase (96.5 in vs 98.6 in)
- Width: Audi TT RS is 0.5 in narrower (72.6 in vs 72.1 in)
Practical verdicts
- Easier to fit in a short garageAudi TT RS — Audi TT RS is shorter by 12.3 in Check garage fit for Porsche 911 · garage fit for Audi TT RS
- Narrower for tight parkingAudi TT RS — Audi TT RS is narrower by 0.5 in
- Smaller exterior footprintAudi TT RS — Based on length × width (Audi TT RS)
Dimension comparison
| Spec | Porsche 911 | Audi TT RS | Difference |
|---|---|---|---|
| Length | 177.3 in | 165.0 in | 12.3 in |
| Width | 72.6 in | 72.1 in | 0.5 in |
| Height | 50.9 in | 52.9 in | 2.0 in |
| Wheelbase | 96.5 in | 98.6 in | 2.1 in |
| Ground clearance | 4.0 in | — | — |
| Curb weight | 3,418 lb | 3,329 lb | 89 lb |
Values use trim midpoints when a model year lists a range (e.g. length 177.1 in – 177.4 in).
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.