Honda Civic Si vs Cadillac ATS Dimensions & Size Comparison
Comparing 2019 catalog dimensions. Honda Civic Si · Cadillac ATS
- Length177.3 in – 182.8 in
- Height54.7 in – 55.5 in
- Wheelbase106.3 in
- Curb weight2,889 lb – 2,906 lb
- Width70.8 in – 70.9 in
- Cadillac ATS width72.5 in
Which is bigger?
- Length: Honda Civic Si is 3.5 in shorter (180.1 in vs 183.6 in)
- Width: Honda Civic Si is 1.7 in narrower (70.8 in vs 72.5 in)
- Height: Honda Civic Si is 0.1 in taller (55.1 in vs 55.0 in)
- Wheelbase: Cadillac ATS has a 3.0 in longer wheelbase (106.3 in vs 109.3 in)
- Curb weight: Cadillac ATS is 658 lb heavier (2,898 lb vs 3,556 lb)
Biggest size differences
- Curb weight: Cadillac ATS is 658 lb heavier (2,898 lb vs 3,556 lb)
- Wheelbase: Cadillac ATS has a 3.0 in longer wheelbase (106.3 in vs 109.3 in)
- Width: Honda Civic Si is 1.7 in narrower (70.8 in vs 72.5 in)
- Length: Honda Civic Si is 3.5 in shorter (180.1 in vs 183.6 in)
- Height: Honda Civic Si is 0.1 in taller (55.1 in vs 55.0 in)
Practical verdicts
- Easier to fit in a short garageHonda Civic Si — Honda Civic Si is shorter by 3.5 in Check garage fit for Honda Civic Si · garage fit for Cadillac ATS
- Narrower for tight parkingHonda Civic Si — Honda Civic Si is narrower by 1.7 in
- Smaller exterior footprintHonda Civic Si — Based on length × width (Honda Civic Si)
Dimension comparison
| Spec | Honda Civic Si | Cadillac ATS | Difference |
|---|---|---|---|
| Length | 180.1 in | 183.6 in | 3.5 in |
| Width | 70.8 in | 72.5 in | 1.7 in |
| Height | 55.1 in | 55.0 in | 0.1 in |
| Wheelbase | 106.3 in | 109.3 in | 3.0 in |
| Curb weight | 2,898 lb | 3,556 lb | 658 lb |
Values use trim midpoints when a model year lists a range (e.g. length 177.3 in – 182.8 in).
Compare by year
Overlapping model years with dimension data.
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