Kia Optima vs Buick Regal Sportback Dimensions & Size Comparison
Comparing 2018 catalog dimensions. Kia Optima · Buick Regal Sportback
- Length191.1 in
- Height57.7 in
- Wheelbase110.4 in
- Ground clearance5.3 in
- Curb weight3,219 lb – 3,494 lb
- Width73.2 in
- Buick Regal Sportback width73.3 in
Which is bigger?
- Length: Kia Optima is 1.8 in shorter (191.1 in vs 192.9 in)
- Width: Kia Optima is 0.1 in narrower (73.2 in vs 73.3 in)
- Height: Kia Optima is 0.4 in taller (57.7 in vs 57.3 in)
- Wheelbase: Buick Regal Sportback has a 1.0 in longer wheelbase (110.4 in vs 111.4 in)
- Curb weight: Buick Regal Sportback is 566 lb heavier (3,357 lb vs 3,922 lb)
Biggest size differences
- Curb weight: Buick Regal Sportback is 566 lb heavier (3,357 lb vs 3,922 lb)
- Length: Kia Optima is 1.8 in shorter (191.1 in vs 192.9 in)
- Wheelbase: Buick Regal Sportback has a 1.0 in longer wheelbase (110.4 in vs 111.4 in)
- Height: Kia Optima is 0.4 in taller (57.7 in vs 57.3 in)
- Width: Kia Optima is 0.1 in narrower (73.2 in vs 73.3 in)
Practical verdicts
- Easier to fit in a short garageKia Optima — Kia Optima is shorter by 1.8 in Check garage fit for Kia Optima · garage fit for Buick Regal Sportback
- Narrower for tight parkingKia Optima — Kia Optima is narrower by 0.1 in
- Smaller exterior footprintKia Optima — Based on length × width (Kia Optima)
Dimension comparison
| Spec | Kia Optima | Buick Regal Sportback | Difference |
|---|---|---|---|
| Length | 191.1 in | 192.9 in | 1.8 in |
| Width | 73.2 in | 73.3 in | 0.1 in |
| Height | 57.7 in | 57.3 in | 0.4 in |
| Wheelbase | 110.4 in | 111.4 in | 1.0 in |
| Ground clearance | 5.3 in | — | — |
| Curb weight | 3,357 lb | 3,922 lb | 566 lb |
Values use trim midpoints when a model year lists a range.
Compare by year
Overlapping model years with dimension data.
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