Nissan Altima vs Kia Optima Dimensions & Size Comparison
Comparing 2006 catalog dimensions. Nissan Altima · Kia Optima
- Length192.3 in – 192.5 in
- Height57.4 in – 57.9 in
- Wheelbase110.2 in
- Curb weight3,001 lb – 3,296 lb
- Width70.4 in
- Kia Optima width71.1 in – 71.5 in
Which is bigger?
- Length: Kia Optima is 6.3 in shorter (192.4 in vs 186.1 in)
- Width: Nissan Altima is 0.9 in narrower (70.4 in vs 71.3 in)
- Height: Nissan Altima is 0.8 in taller (57.6 in vs 56.9 in)
- Wheelbase: Nissan Altima has a 3.5 in longer wheelbase (110.2 in vs 106.7 in)
- Curb weight: Kia Optima is 73 lb heavier (3,149 lb vs 3,222 lb)
Biggest size differences
- Length: Kia Optima is 6.3 in shorter (192.4 in vs 186.1 in)
- Wheelbase: Nissan Altima has a 3.5 in longer wheelbase (110.2 in vs 106.7 in)
- Curb weight: Kia Optima is 73 lb heavier (3,149 lb vs 3,222 lb)
- Height: Nissan Altima is 0.8 in taller (57.6 in vs 56.9 in)
- Width: Nissan Altima is 0.9 in narrower (70.4 in vs 71.3 in)
Practical verdicts
- Easier to fit in a short garageKia Optima — Kia Optima is shorter by 6.3 in Check garage fit for Nissan Altima · garage fit for Kia Optima
- 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 | Nissan Altima | Kia Optima | Difference |
|---|---|---|---|
| Length | 192.4 in | 186.1 in | 6.3 in |
| Width | 70.4 in | 71.3 in | 0.9 in |
| Height | 57.6 in | 56.9 in | 0.8 in |
| Wheelbase | 110.2 in | 106.7 in | 3.5 in |
| Curb weight | 3,149 lb | 3,222 lb | 73 lb |
Values use trim midpoints when a model year lists a range (e.g. length 192.3 in – 192.5 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.