Spec Sizes

Kia Optima vs Nissan Altima Dimensions & Size Comparison

Comparing 2001 catalog dimensions. Kia Optima · Nissan Altima

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

Side view
  • Length185.9 in
  • Height55.5 in
  • Wheelbase106.3 in
  • Curb weight3,157 lb – 3,190 lb
Front / width
  • Width71.5 in
  • Nissan Altima width69.1 in

Which is bigger?

  • Length: Nissan Altima is 0.1 in shorter (185.9 in vs 185.8 in)
  • Width: Nissan Altima is 2.4 in narrower (71.5 in vs 69.1 in)
  • Height: Nissan Altima is 0.4 in taller (55.5 in vs 55.9 in)
  • Wheelbase: Kia Optima has a 3.2 in longer wheelbase (106.3 in vs 103.1 in)
  • Curb weight: Kia Optima is 220 lb heavier (3,174 lb vs 2,954 lb)

Biggest size differences

  1. Curb weight: Kia Optima is 220 lb heavier (3,174 lb vs 2,954 lb)
  2. Width: Nissan Altima is 2.4 in narrower (71.5 in vs 69.1 in)
  3. Wheelbase: Kia Optima has a 3.2 in longer wheelbase (106.3 in vs 103.1 in)
  4. Height: Nissan Altima is 0.4 in taller (55.5 in vs 55.9 in)
  5. Length: Nissan Altima is 0.1 in shorter (185.9 in vs 185.8 in)

Practical verdicts

  • Easier to fit in a short garageNissan Altima — Nissan Altima is shorter by 0.1 in Check garage fit for Kia Optima · garage fit for Nissan Altima
  • Narrower for tight parkingNissan Altima — Nissan Altima is narrower by 2.4 in
  • Smaller exterior footprintNissan Altima — Based on length × width (Nissan Altima)

Dimension comparison

SpecKia OptimaNissan AltimaDifference
Length185.9 in185.8 in0.1 in
Width71.5 in69.1 in2.4 in
Height55.5 in55.9 in0.4 in
Wheelbase106.3 in103.1 in3.2 in
Curb weight3,174 lb2,954 lb220 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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