Spec Sizes

Acura TSX vs Kia Optima Dimensions & Size Comparison

Comparing 2006 catalog dimensions. Acura TSX · Kia Optima

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

Side view
  • Length183.4 in
  • Height57.3 in
  • Wheelbase105.1 in
  • Ground clearance6.1 in
  • Curb weight3,257 lb
Front / width
  • Width69.4 in
  • Kia Optima width71.1 in – 71.5 in

Which is bigger?

  • Length: Acura TSX is 2.7 in shorter (183.4 in vs 186.1 in)
  • Width: Acura TSX is 1.9 in narrower (69.4 in vs 71.3 in)
  • Height: Acura TSX is 0.4 in taller (57.3 in vs 56.9 in)
  • Wheelbase: Kia Optima has a 1.6 in longer wheelbase (105.1 in vs 106.7 in)
  • Curb weight: Acura TSX is 36 lb heavier (3,257 lb vs 3,222 lb)

Biggest size differences

  1. Width: Acura TSX is 1.9 in narrower (69.4 in vs 71.3 in)
  2. Wheelbase: Kia Optima has a 1.6 in longer wheelbase (105.1 in vs 106.7 in)
  3. Length: Acura TSX is 2.7 in shorter (183.4 in vs 186.1 in)
  4. Curb weight: Acura TSX is 36 lb heavier (3,257 lb vs 3,222 lb)
  5. Height: Acura TSX is 0.4 in taller (57.3 in vs 56.9 in)

Practical verdicts

  • Easier to fit in a short garageAcura TSX — Acura TSX is shorter by 2.7 in Check garage fit for Acura TSX · garage fit for Kia Optima
  • Narrower for tight parkingAcura TSX — Acura TSX is narrower by 1.9 in
  • Smaller exterior footprintAcura TSX — Based on length × width (Acura TSX)

Dimension comparison

SpecAcura TSXKia OptimaDifference
Length183.4 in186.1 in2.7 in
Width69.4 in71.3 in1.9 in
Height57.3 in56.9 in0.4 in
Wheelbase105.1 in106.7 in1.6 in
Ground clearance6.1 in——
Curb weight3,257 lb3,222 lb36 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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