Spec Sizes

Mazda Mazda6 vs Kia Optima Dimensions & Size Comparison

Comparing 2006 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 – 187.8 in
  • Height56.7 in – 57.3 in
  • Wheelbase105.3 in
  • Curb weight3,091 lb – 3,461 lb
Front / width
  • Width70.1 in
  • Kia Optima width71.1 in – 71.5 in

Which is bigger?

  • Length: Kia Optima is 1.2 in shorter (187.3 in vs 186.1 in)
  • Width: Mazda Mazda6 is 1.2 in narrower (70.1 in vs 71.3 in)
  • Height: Mazda Mazda6 is 0.1 in taller (57.0 in vs 56.9 in)
  • Wheelbase: Kia Optima has a 1.4 in longer wheelbase (105.3 in vs 106.7 in)
  • Curb weight: Mazda Mazda6 is 55 lb heavier (3,276 lb vs 3,222 lb)

Biggest size differences

  1. Curb weight: Mazda Mazda6 is 55 lb heavier (3,276 lb vs 3,222 lb)
  2. Width: Mazda Mazda6 is 1.2 in narrower (70.1 in vs 71.3 in)
  3. Wheelbase: Kia Optima has a 1.4 in longer wheelbase (105.3 in vs 106.7 in)
  4. Length: Kia Optima is 1.2 in shorter (187.3 in vs 186.1 in)
  5. Height: Mazda Mazda6 is 0.1 in taller (57.0 in vs 56.9 in)

Practical verdicts

  • Easier to fit in a short garageKia Optima — Kia Optima is shorter by 1.2 in Check garage fit for Mazda Mazda6 · garage fit for Kia Optima
  • Narrower for tight parkingMazda Mazda6 — Mazda Mazda6 is narrower by 1.2 in
  • Smaller exterior footprintMazda Mazda6 — Based on length × width (Mazda Mazda6)

Dimension comparison

SpecMazda Mazda6Kia OptimaDifference
Length187.3 in186.1 in1.2 in
Width70.1 in71.3 in1.2 in
Height57.0 in56.9 in0.1 in
Wheelbase105.3 in106.7 in1.4 in
Curb weight3,276 lb3,222 lb55 lb

Values use trim midpoints when a model year lists a range (e.g. length 186.8 in – 187.8 in).

Compare by year

Overlapping model years with dimension data.

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