Spec Sizes

Kia Optima vs Infiniti Q50 Dimensions & Size Comparison

Comparing 2014 catalog dimensions. Kia Optima · Infiniti Q50

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

Side view
  • Length190.7 in
  • Height57.1 in
  • Wheelbase110.0 in
  • Curb weight3,237 lb – 3,468 lb
Front / width
  • Width72.1 in
  • Infiniti Q50 width71.8 in

Which is bigger?

  • Length: Infiniti Q50 is 2.0 in shorter (190.7 in vs 188.7 in)
  • Width: Infiniti Q50 is 0.3 in narrower (72.1 in vs 71.8 in)
  • Height: Kia Optima is 0.1 in taller (57.1 in vs 57.0 in)
  • Wheelbase: Infiniti Q50 has a 2.2 in longer wheelbase (110.0 in vs 112.2 in)
  • Curb weight: Infiniti Q50 is 359 lb heavier (3,353 lb vs 3,712 lb)

Biggest size differences

  1. Curb weight: Infiniti Q50 is 359 lb heavier (3,353 lb vs 3,712 lb)
  2. Wheelbase: Infiniti Q50 has a 2.2 in longer wheelbase (110.0 in vs 112.2 in)
  3. Length: Infiniti Q50 is 2.0 in shorter (190.7 in vs 188.7 in)
  4. Width: Infiniti Q50 is 0.3 in narrower (72.1 in vs 71.8 in)
  5. Height: Kia Optima is 0.1 in taller (57.1 in vs 57.0 in)

Practical verdicts

  • Easier to fit in a short garageInfiniti Q50 — Infiniti Q50 is shorter by 2.0 in Check garage fit for Kia Optima · garage fit for Infiniti Q50
  • Narrower for tight parkingInfiniti Q50 — Infiniti Q50 is narrower by 0.3 in
  • Smaller exterior footprintInfiniti Q50 — Based on length × width (Infiniti Q50)

Dimension comparison

SpecKia OptimaInfiniti Q50Difference
Length190.7 in188.7 in2.0 in
Width72.1 in71.8 in0.3 in
Height57.1 in57.0 in0.1 in
Wheelbase110.0 in112.2 in2.2 in
Curb weight3,353 lb3,712 lb359 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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