Kia Optima vs Hyundai Sonata Dimensions & Size Comparison
Comparing 2003 catalog dimensions. Kia Optima · Hyundai Sonata
- Length185.8 in
- Height55.5 in
- Wheelbase106.3 in
- Curb weight3,279 lb – 3,301 lb
- Width71.5 in
- Hyundai Sonata width71.7 in
Which is bigger?
- Length: Kia Optima is 1.1 in shorter (185.8 in vs 186.9 in)
- Width: Kia Optima is 0.2 in narrower (71.5 in vs 71.7 in)
- Height: Hyundai Sonata is 0.5 in taller (55.5 in vs 56.0 in)
- Wheelbase: essentially the same
- Curb weight: Kia Optima is 91 lb heavier (3,290 lb vs 3,199 lb)
Biggest size differences
- Curb weight: Kia Optima is 91 lb heavier (3,290 lb vs 3,199 lb)
- Height: Hyundai Sonata is 0.5 in taller (55.5 in vs 56.0 in)
- Length: Kia Optima is 1.1 in shorter (185.8 in vs 186.9 in)
- Width: Kia Optima is 0.2 in narrower (71.5 in vs 71.7 in)
Practical verdicts
- Easier to fit in a short garageKia Optima — Kia Optima is shorter by 1.1 in Check garage fit for Kia Optima · garage fit for Hyundai Sonata
- Narrower for tight parkingKia Optima — Kia Optima is narrower by 0.2 in
Dimension comparison
| Spec | Kia Optima | Hyundai Sonata | Difference |
|---|---|---|---|
| Length | 185.8 in | 186.9 in | 1.1 in |
| Width | 71.5 in | 71.7 in | 0.2 in |
| Height | 55.5 in | 56.0 in | 0.5 in |
| Wheelbase | 106.3 in | 106.3 in | 0.0 in |
| Curb weight | 3,290 lb | 3,199 lb | 91 lb |
Values use trim midpoints when a model year lists a range.
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.