Porsche 911 vs Cadillac XLR Dimensions & Size Comparison
Comparing 2005 catalog dimensions. Porsche 911 · Cadillac XLR
- Length174.6 in – 175.6 in
- Height50.2 in – 51.6 in
- Wheelbase92.5 in – 92.7 in
- Ground clearance3.8 in – 4.3 in
- Curb weight3,042 lb – 3,660 lb
- Width69.7 in – 72.1 in
- Cadillac XLR width72.3 in
Which is bigger?
- Length: Porsche 911 is 2.6 in shorter (175.1 in vs 177.7 in)
- Width: Porsche 911 is 1.4 in narrower (70.9 in vs 72.3 in)
- Height: Porsche 911 is 0.5 in taller (50.9 in vs 50.4 in)
- Wheelbase: Cadillac XLR has a 13.1 in longer wheelbase (92.6 in vs 105.7 in)
- Curb weight: Cadillac XLR is 296 lb heavier (3,351 lb vs 3,647 lb)
Biggest size differences
- Wheelbase: Cadillac XLR has a 13.1 in longer wheelbase (92.6 in vs 105.7 in)
- Curb weight: Cadillac XLR is 296 lb heavier (3,351 lb vs 3,647 lb)
- Width: Porsche 911 is 1.4 in narrower (70.9 in vs 72.3 in)
- Length: Porsche 911 is 2.6 in shorter (175.1 in vs 177.7 in)
- Height: Porsche 911 is 0.5 in taller (50.9 in vs 50.4 in)
Practical verdicts
- Easier to fit in a short garagePorsche 911 — Porsche 911 is shorter by 2.6 in Check garage fit for Porsche 911 · garage fit for Cadillac XLR
- Narrower for tight parkingPorsche 911 — Porsche 911 is narrower by 1.4 in
- Smaller exterior footprintPorsche 911 — Based on length × width (Porsche 911)
Dimension comparison
| Spec | Porsche 911 | Cadillac XLR | Difference |
|---|---|---|---|
| Length | 175.1 in | 177.7 in | 2.6 in |
| Width | 70.9 in | 72.3 in | 1.4 in |
| Height | 50.9 in | 50.4 in | 0.5 in |
| Wheelbase | 92.6 in | 105.7 in | 13.1 in |
| Ground clearance | 4.0 in | — | — |
| Curb weight | 3,351 lb | 3,647 lb | 296 lb |
Values use trim midpoints when a model year lists a range (e.g. length 174.6 in – 175.6 in).
Compare by year
Overlapping model years with dimension data.
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