Spec Sizes

Cadillac XLR vs Dodge Viper Dimensions & Size Comparison

Comparing 2009 vs 2017 catalog dimensions. Cadillac XLR · Dodge Viper

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

Side view
  • Length177.7 in
  • Height50.4 in
  • Wheelbase105.7 in
  • Curb weight3,647 lb
Front / width
  • Width72.3 in
  • Dodge Viper width76.4 in

Which is bigger?

  • Length: Dodge Viper is 2.0 in shorter (177.7 in vs 175.7 in)
  • Width: Cadillac XLR is 4.1 in narrower (72.3 in vs 76.4 in)
  • Height: Cadillac XLR is 1.3 in taller (50.4 in vs 49.1 in)
  • Wheelbase: Cadillac XLR has a 6.9 in longer wheelbase (105.7 in vs 98.8 in)
  • Curb weight: Cadillac XLR is 253 lb heavier (3,647 lb vs 3,395 lb)

Biggest size differences

  1. Curb weight: Cadillac XLR is 253 lb heavier (3,647 lb vs 3,395 lb)
  2. Wheelbase: Cadillac XLR has a 6.9 in longer wheelbase (105.7 in vs 98.8 in)
  3. Width: Cadillac XLR is 4.1 in narrower (72.3 in vs 76.4 in)
  4. Height: Cadillac XLR is 1.3 in taller (50.4 in vs 49.1 in)
  5. Length: Dodge Viper is 2.0 in shorter (177.7 in vs 175.7 in)

Practical verdicts

  • Easier to fit in a short garageDodge Viper — Dodge Viper is shorter by 2.0 in Check garage fit for Cadillac XLR · garage fit for Dodge Viper
  • Narrower for tight parkingCadillac XLR — Cadillac XLR is narrower by 4.1 in
  • Smaller exterior footprintCadillac XLR — Based on length × width (Cadillac XLR)

Dimension comparison

SpecCadillac XLRDodge ViperDifference
Length177.7 in175.7 in2.0 in
Width72.3 in76.4 in4.1 in
Height50.4 in49.1 in1.3 in
Wheelbase105.7 in98.8 in6.9 in
Ground clearance—5.0 in—
Curb weight3,647 lb3,395 lb253 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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