Spec Sizes

Mazda Mazda6 vs Kia Optima Dimensions & Size Comparison

Comparing 2008 catalog dimensions. Mazda Mazda6 · Kia Optima

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

Side view
  • Length186.8 in
  • Height56.7 in
  • Wheelbase105.3 in
  • Curb weight3,093 lb – 3,422 lb
Front / width
  • Width70.1 in
  • Kia Optima width71.1 in

Which is bigger?

  • Length: Kia Optima is 0.4 in shorter (186.8 in vs 186.4 in)
  • Width: Mazda Mazda6 is 1.0 in narrower (70.1 in vs 71.1 in)
  • Height: Kia Optima is 1.6 in taller (56.7 in vs 58.3 in)
  • Wheelbase: Kia Optima has a 1.8 in longer wheelbase (105.3 in vs 107.1 in)
  • Curb weight: Mazda Mazda6 is 43 lb heavier (3,258 lb vs 3,215 lb)

Biggest size differences

  1. Height: Kia Optima is 1.6 in taller (56.7 in vs 58.3 in)
  2. Wheelbase: Kia Optima has a 1.8 in longer wheelbase (105.3 in vs 107.1 in)
  3. Width: Mazda Mazda6 is 1.0 in narrower (70.1 in vs 71.1 in)
  4. Curb weight: Mazda Mazda6 is 43 lb heavier (3,258 lb vs 3,215 lb)
  5. Length: Kia Optima is 0.4 in shorter (186.8 in vs 186.4 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 1.0 in
  • Smaller exterior footprintMazda Mazda6 — Based on length × width (Mazda Mazda6)

Dimension comparison

SpecMazda Mazda6Kia OptimaDifference
Length186.8 in186.4 in0.4 in
Width70.1 in71.1 in1.0 in
Height56.7 in58.3 in1.6 in
Wheelbase105.3 in107.1 in1.8 in
Curb weight3,258 lb3,215 lb43 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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