Mazda Mazda6 vs Kia Optima Dimensions & Size Comparison
Comparing 2014 vs 2020 catalog dimensions. Mazda Mazda6 · Kia Optima
- Length191.5 in
- Height57.1 in
- Wheelbase111.4 in
- Curb weight3,183 lb – 3,232 lb
- Width72.4 in
- Kia Optima width73.2 in
Which is bigger?
- Length: Kia Optima is 0.4 in shorter (191.5 in vs 191.1 in)
- Width: Mazda Mazda6 is 0.8 in narrower (72.4 in vs 73.2 in)
- Height: Kia Optima is 0.6 in taller (57.1 in vs 57.7 in)
- Wheelbase: Mazda Mazda6 has a 1.0 in longer wheelbase (111.4 in vs 110.4 in)
- Curb weight: Kia Optima is 187 lb heavier (3,208 lb vs 3,394 lb)
Biggest size differences
- Curb weight: Kia Optima is 187 lb heavier (3,208 lb vs 3,394 lb)
- Width: Mazda Mazda6 is 0.8 in narrower (72.4 in vs 73.2 in)
- Height: Kia Optima is 0.6 in taller (57.1 in vs 57.7 in)
- Wheelbase: Mazda Mazda6 has a 1.0 in longer wheelbase (111.4 in vs 110.4 in)
- Length: Kia Optima is 0.4 in shorter (191.5 in vs 191.1 in)
Practical verdicts
- Easier to fit in a short garageKia Optima — Kia Optima is shorter by 0.4 in Check garage fit for Mazda Mazda6 · garage fit for Kia Optima
- Narrower for tight parkingMazda Mazda6 — Mazda Mazda6 is narrower by 0.8 in
Dimension comparison
| Spec | Mazda Mazda6 | Kia Optima | Difference |
|---|---|---|---|
| Length | 191.5 in | 191.1 in | 0.4 in |
| Width | 72.4 in | 73.2 in | 0.8 in |
| Height | 57.1 in | 57.7 in | 0.6 in |
| Wheelbase | 111.4 in | 110.4 in | 1.0 in |
| Ground clearance | — | 5.3 in | — |
| Curb weight | 3,208 lb | 3,394 lb | 187 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.