Spec Sizes

Mazda Mazda6 vs Kia Optima Dimensions & Size Comparison

Comparing 2003 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 weight3,042 lb – 3,243 lb
Front / width
  • Width70.1 in
  • Kia Optima width71.5 in

Which is bigger?

  • Length: Kia Optima is 1.0 in shorter (186.8 in vs 185.8 in)
  • Width: Mazda Mazda6 is 1.4 in narrower (70.1 in vs 71.5 in)
  • Height: Mazda Mazda6 is 1.2 in taller (56.7 in vs 55.5 in)
  • Wheelbase: Kia Optima has a 1.0 in longer wheelbase (105.3 in vs 106.3 in)
  • Curb weight: Kia Optima is 148 lb heavier (3,143 lb vs 3,290 lb)

Biggest size differences

  1. Curb weight: Kia Optima is 148 lb heavier (3,143 lb vs 3,290 lb)
  2. Height: Mazda Mazda6 is 1.2 in taller (56.7 in vs 55.5 in)
  3. Width: Mazda Mazda6 is 1.4 in narrower (70.1 in vs 71.5 in)
  4. Wheelbase: Kia Optima has a 1.0 in longer wheelbase (105.3 in vs 106.3 in)
  5. Length: Kia Optima is 1.0 in shorter (186.8 in vs 185.8 in)

Practical verdicts

  • Easier to fit in a short garageKia Optima — Kia Optima is shorter by 1.0 in Check garage fit for Mazda Mazda6 · garage fit for Kia Optima
  • Narrower for tight parkingMazda Mazda6 — Mazda Mazda6 is narrower by 1.4 in
  • Smaller exterior footprintMazda Mazda6 — Based on length × width (Mazda Mazda6)

Dimension comparison

SpecMazda Mazda6Kia OptimaDifference
Length186.8 in185.8 in1.0 in
Width70.1 in71.5 in1.4 in
Height56.7 in55.5 in1.2 in
Wheelbase105.3 in106.3 in1.0 in
Curb weight3,143 lb3,290 lb148 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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