Spec Sizes

Kia Optima vs Mazda Mazda6 Dimensions & Size Comparison

Comparing 2003 catalog dimensions. Kia Optima · Mazda Mazda6

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

Side view
  • Length185.8 in
  • Height55.5 in
  • Wheelbase106.3 in
  • Curb weight3,279 lb – 3,301 lb
Front / width
  • Width71.5 in
  • Mazda Mazda6 width70.1 in

Which is bigger?

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

Biggest size differences

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

Practical verdicts

  • Easier to fit in a short garageKia Optima — Kia Optima is shorter by 1.0 in Check garage fit for Kia Optima · garage fit for Mazda Mazda6
  • 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

SpecKia OptimaMazda Mazda6Difference
Length185.8 in186.8 in1.0 in
Width71.5 in70.1 in1.4 in
Height55.5 in56.7 in1.2 in
Wheelbase106.3 in105.3 in1.0 in
Curb weight3,290 lb3,143 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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