Spec Sizes

BMW i4 vs Kia Optima Dimensions & Size Comparison

Comparing 2023 vs 2020 catalog dimensions. BMW i4 · Kia Optima

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

Side view
  • Length188.5 in
  • Height57.0 in
  • Wheelbase112.4 in
  • Curb weight4,680 lb – 5,018 lb
Front / width
  • Width72.9 in
  • Kia Optima width73.2 in

Which is bigger?

  • Length: BMW i4 is 2.6 in shorter (188.5 in vs 191.1 in)
  • Width: BMW i4 is 0.3 in narrower (72.9 in vs 73.2 in)
  • Height: Kia Optima is 0.7 in taller (57.0 in vs 57.7 in)
  • Wheelbase: BMW i4 has a 2.0 in longer wheelbase (112.4 in vs 110.4 in)
  • Curb weight: BMW i4 is 1,455 lb heavier (4,849 lb vs 3,394 lb)

Biggest size differences

  1. Curb weight: BMW i4 is 1,455 lb heavier (4,849 lb vs 3,394 lb)
  2. Wheelbase: BMW i4 has a 2.0 in longer wheelbase (112.4 in vs 110.4 in)
  3. Length: BMW i4 is 2.6 in shorter (188.5 in vs 191.1 in)
  4. Height: Kia Optima is 0.7 in taller (57.0 in vs 57.7 in)
  5. Width: BMW i4 is 0.3 in narrower (72.9 in vs 73.2 in)

Practical verdicts

  • Easier to fit in a short garageBMW i4 — BMW i4 is shorter by 2.6 in Check garage fit for BMW i4 · garage fit for Kia Optima
  • Narrower for tight parkingBMW i4 — BMW i4 is narrower by 0.3 in
  • Smaller exterior footprintBMW i4 — Based on length × width (BMW i4)

Dimension comparison

SpecBMW i4Kia OptimaDifference
Length188.5 in191.1 in2.6 in
Width72.9 in73.2 in0.3 in
Height57.0 in57.7 in0.7 in
Wheelbase112.4 in110.4 in2.0 in
Ground clearance—5.3 in—
Curb weight4,849 lb3,394 lb1,455 lb

Values use trim midpoints when a model year lists a range.

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