Kia Optima vs Nissan Altima Dimensions & Size Comparison
Comparing 2006 catalog dimensions. Kia Optima · Nissan Altima
- Length185.8 in – 186.4 in
- Height55.5 in – 58.3 in
- Wheelbase106.3 in – 107.1 in
- Curb weight3,142 lb – 3,301 lb
- Width71.1 in – 71.5 in
- Nissan Altima width70.4 in
Which is bigger?
- Length: Kia Optima is 6.3 in shorter (186.1 in vs 192.4 in)
- Width: Nissan Altima is 0.9 in narrower (71.3 in vs 70.4 in)
- Height: Nissan Altima is 0.8 in taller (56.9 in vs 57.6 in)
- Wheelbase: Nissan Altima has a 3.5 in longer wheelbase (106.7 in vs 110.2 in)
- Curb weight: Kia Optima is 73 lb heavier (3,222 lb vs 3,149 lb)
Biggest size differences
- Length: Kia Optima is 6.3 in shorter (186.1 in vs 192.4 in)
- Wheelbase: Nissan Altima has a 3.5 in longer wheelbase (106.7 in vs 110.2 in)
- Curb weight: Kia Optima is 73 lb heavier (3,222 lb vs 3,149 lb)
- Height: Nissan Altima is 0.8 in taller (56.9 in vs 57.6 in)
- Width: Nissan Altima is 0.9 in narrower (71.3 in vs 70.4 in)
Practical verdicts
- Easier to fit in a short garageKia Optima — Kia Optima is shorter by 6.3 in Check garage fit for Kia Optima · garage fit for Nissan Altima
- Narrower for tight parkingNissan Altima — Nissan Altima is narrower by 0.9 in
- Smaller exterior footprintKia Optima — Based on length × width (Kia Optima)
Dimension comparison
| Spec | Kia Optima | Nissan Altima | Difference |
|---|---|---|---|
| Length | 186.1 in | 192.4 in | 6.3 in |
| Width | 71.3 in | 70.4 in | 0.9 in |
| Height | 56.9 in | 57.6 in | 0.8 in |
| Wheelbase | 106.7 in | 110.2 in | 3.5 in |
| Curb weight | 3,222 lb | 3,149 lb | 73 lb |
Values use trim midpoints when a model year lists a range (e.g. length 185.8 in – 186.4 in).
Compare by year
Overlapping model years with dimension data.
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