Spec Sizes

Nissan Altima vs Kia Optima Dimensions & Size Comparison

Comparing 2001 catalog dimensions. Nissan Altima · Kia Optima

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

Side view
  • Length185.8 in
  • Height55.9 in
  • Wheelbase103.1 in
  • Curb weight2,851 lb – 3,057 lb
Front / width
  • Width69.1 in
  • Kia Optima width71.5 in

Which is bigger?

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

Biggest size differences

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

Practical verdicts

  • Easier to fit in a short garageNissan Altima — Nissan Altima is shorter by 0.1 in Check garage fit for Nissan Altima · garage fit for Kia Optima
  • 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

SpecNissan AltimaKia OptimaDifference
Length185.8 in185.9 in0.1 in
Width69.1 in71.5 in2.4 in
Height55.9 in55.5 in0.4 in
Wheelbase103.1 in106.3 in3.2 in
Curb weight2,954 lb3,174 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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