Spec Sizes

Buick Lucerne vs Cadillac CT6 Dimensions & Size Comparison

Comparing 2009 vs 2020 catalog dimensions. Buick Lucerne · Cadillac CT6

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

Side view
  • Length203.2 in
  • Height58.0 in
  • Wheelbase115.6 in
  • Curb weight3,764 lb – 4,013 lb
Front / width
  • Width73.8 in
  • Cadillac CT6 width74.0 in

Which is bigger?

  • Length: Buick Lucerne is 2.6 in shorter (203.2 in vs 205.8 in)
  • Width: Buick Lucerne is 0.2 in narrower (73.8 in vs 74.0 in)
  • Height: essentially the same
  • Wheelbase: Cadillac CT6 has a 6.8 in longer wheelbase (115.6 in vs 122.4 in)
  • Curb weight: Buick Lucerne is 1,916 lb heavier (3,889 lb vs 1,973 lb)

Biggest size differences

  1. Curb weight: Buick Lucerne is 1,916 lb heavier (3,889 lb vs 1,973 lb)
  2. Wheelbase: Cadillac CT6 has a 6.8 in longer wheelbase (115.6 in vs 122.4 in)
  3. Length: Buick Lucerne is 2.6 in shorter (203.2 in vs 205.8 in)
  4. Width: Buick Lucerne is 0.2 in narrower (73.8 in vs 74.0 in)

Practical verdicts

  • Easier to fit in a short garageBuick Lucerne — Buick Lucerne is shorter by 2.6 in Check garage fit for Buick Lucerne · garage fit for Cadillac CT6
  • Narrower for tight parkingBuick Lucerne — Buick Lucerne is narrower by 0.2 in
  • Smaller exterior footprintBuick Lucerne — Based on length × width (Buick Lucerne)

Dimension comparison

SpecBuick LucerneCadillac CT6Difference
Length203.2 in205.8 in2.6 in
Width73.8 in74.0 in0.2 in
Height58.0 in58.0 in0.0 in
Wheelbase115.6 in122.4 in6.8 in
Curb weight3,889 lb1,973 lb1,916 lb

Values use trim midpoints when a model year lists a range.

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