Spec Sizes

GMC Acadia vs Toyota Sienna Dimensions & Size Comparison

Comparing 2021 catalog dimensions. GMC Acadia · Toyota Sienna

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

Side view
  • Length193.4 in
  • Height66.7 in
  • Wheelbase112.5 in
  • Ground clearance7.2 in
  • Curb weight3,923 lb – 4,390 lb
Front / width
  • Width75.4 in
  • Toyota Sienna width78.5 in

Which is bigger?

  • Length: GMC Acadia is 10.1 in shorter (193.4 in vs 203.5 in)
  • Width: GMC Acadia is 3.1 in narrower (75.4 in vs 78.5 in)
  • Height: Toyota Sienna is 2.4 in taller (66.7 in vs 69.1 in)
  • Wheelbase: Toyota Sienna has a 8.0 in longer wheelbase (112.5 in vs 120.5 in)
  • Ground clearance: GMC Acadia has 0.9 in more ground clearance (7.2 in vs 6.3 in)
  • Curb weight: Toyota Sienna is 511 lb heavier (4,157 lb vs 4,668 lb)

Biggest size differences

  1. Ground clearance: GMC Acadia has 0.9 in more ground clearance (7.2 in vs 6.3 in)
  2. Curb weight: Toyota Sienna is 511 lb heavier (4,157 lb vs 4,668 lb)
  3. Wheelbase: Toyota Sienna has a 8.0 in longer wheelbase (112.5 in vs 120.5 in)
  4. Length: GMC Acadia is 10.1 in shorter (193.4 in vs 203.5 in)
  5. Width: GMC Acadia is 3.1 in narrower (75.4 in vs 78.5 in)

Practical verdicts

  • Easier to fit in a short garageGMC Acadia — GMC Acadia is shorter by 10.1 in Check garage fit for GMC Acadia · garage fit for Toyota Sienna
  • Narrower for tight parkingGMC Acadia — GMC Acadia is narrower by 3.1 in
  • More ground clearanceGMC Acadia — GMC Acadia has 0.9 in more clearance
  • Smaller exterior footprintGMC Acadia — Based on length × width (GMC Acadia)

Dimension comparison

SpecGMC AcadiaToyota SiennaDifference
Length193.4 in203.5 in10.1 in
Width75.4 in78.5 in3.1 in
Height66.7 in69.1 in2.4 in
Wheelbase112.5 in120.5 in8.0 in
Ground clearance7.2 in6.3 in0.9 in
Curb weight4,157 lb4,668 lb511 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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