Kia Optima vs Hyundai Sonata Dimensions & Size Comparison

Comparing 2018 vs 2023 catalog dimensions. Kia Optima · Hyundai Sonata

Same scale for both vehicles. Generic silhouette — proportional to measured length, height, width, wheelbase, and clearance.

Side view
  • Length191.1 in
  • Height57.7 in
  • Wheelbase110.4 in
  • Ground clearance5.3 in
  • Curb weight3,219 lb – 3,494 lb
Front / width
  • Width73.2 in
  • Hyundai Sonata width73.2 in

Which is bigger?

  • Length: Kia Optima is 1.8 in shorter (191.1 in vs 192.9 in)
  • Width: essentially the same
  • Height: Kia Optima is 0.8 in taller (57.7 in vs 56.9 in)
  • Wheelbase: Hyundai Sonata has a 1.4 in longer wheelbase (110.4 in vs 111.8 in)
  • Ground clearance: essentially the same
  • Curb weight: Kia Optima is 21 lb heavier (3,357 lb vs 3,336 lb)

Biggest size differences

  1. Height: Kia Optima is 0.8 in taller (57.7 in vs 56.9 in)
  2. Wheelbase: Hyundai Sonata has a 1.4 in longer wheelbase (110.4 in vs 111.8 in)
  3. Length: Kia Optima is 1.8 in shorter (191.1 in vs 192.9 in)
  4. Curb weight: Kia Optima is 21 lb heavier (3,357 lb vs 3,336 lb)

Practical verdicts

Dimension comparison

SpecKia OptimaHyundai SonataDifference
Length191.1 in192.9 in1.8 in
Width73.2 in73.2 in0.0 in
Height57.7 in56.9 in0.8 in
Wheelbase110.4 in111.8 in1.4 in
Ground clearance5.3 in5.3 in0.0 in
Curb weight3,357 lb3,336 lb21 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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