Spec Sizes

Acura TSX vs Kia Optima Dimensions & Size Comparison

Comparing 2011 vs 2020 catalog dimensions. Acura TSX · Kia Optima

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

Side view
  • Length185.6 in – 189.2 in
  • Height56.7 in – 57.9 in
  • Wheelbase106.4 in
  • Curb weight3,400 lb – 3,680 lb
Front / width
  • Width72.4 in
  • Kia Optima width73.2 in

Which is bigger?

  • Length: Acura TSX is 3.7 in shorter (187.4 in vs 191.1 in)
  • Width: Acura TSX is 0.8 in narrower (72.4 in vs 73.2 in)
  • Height: Kia Optima is 0.4 in taller (57.3 in vs 57.7 in)
  • Wheelbase: Kia Optima has a 4.0 in longer wheelbase (106.4 in vs 110.4 in)
  • Curb weight: Acura TSX is 146 lb heavier (3,540 lb vs 3,394 lb)

Biggest size differences

  1. Curb weight: Acura TSX is 146 lb heavier (3,540 lb vs 3,394 lb)
  2. Wheelbase: Kia Optima has a 4.0 in longer wheelbase (106.4 in vs 110.4 in)
  3. Length: Acura TSX is 3.7 in shorter (187.4 in vs 191.1 in)
  4. Width: Acura TSX is 0.8 in narrower (72.4 in vs 73.2 in)
  5. Height: Kia Optima is 0.4 in taller (57.3 in vs 57.7 in)

Practical verdicts

  • Easier to fit in a short garageAcura TSX — Acura TSX is shorter by 3.7 in Check garage fit for Acura TSX · garage fit for Kia Optima
  • Narrower for tight parkingAcura TSX — Acura TSX is narrower by 0.8 in
  • Smaller exterior footprintAcura TSX — Based on length × width (Acura TSX)

Dimension comparison

SpecAcura TSXKia OptimaDifference
Length187.4 in191.1 in3.7 in
Width72.4 in73.2 in0.8 in
Height57.3 in57.7 in0.4 in
Wheelbase106.4 in110.4 in4.0 in
Ground clearance—5.3 in—
Curb weight3,540 lb3,394 lb146 lb

Values use trim midpoints when a model year lists a range (e.g. length 185.6 in – 189.2 in).

Compare by year

Overlapping model years with dimension data.

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