Spec Sizes

Buick Riviera vs BMW M6 Dimensions & Size Comparison

Comparing 1999 vs 2018 catalog dimensions. Buick Riviera · BMW M6

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

Side view
  • Length207.2 in
  • Height54.6 in
  • Wheelbase113.8 in
  • Curb weight3,713 lb
Front / width
  • Width75.0 in
  • BMW M6 width74.8 in

Which is bigger?

  • Length: BMW M6 is 14.2 in shorter (207.2 in vs 193.0 in)
  • Width: BMW M6 is 0.2 in narrower (75.0 in vs 74.8 in)
  • Height: Buick Riviera is 0.7 in taller (54.6 in vs 53.9 in)
  • Wheelbase: Buick Riviera has a 1.6 in longer wheelbase (113.8 in vs 112.2 in)
  • Curb weight: BMW M6 is 802 lb heavier (3,713 lb vs 4,515 lb)

Biggest size differences

  1. Curb weight: BMW M6 is 802 lb heavier (3,713 lb vs 4,515 lb)
  2. Length: BMW M6 is 14.2 in shorter (207.2 in vs 193.0 in)
  3. Wheelbase: Buick Riviera has a 1.6 in longer wheelbase (113.8 in vs 112.2 in)
  4. Height: Buick Riviera is 0.7 in taller (54.6 in vs 53.9 in)
  5. Width: BMW M6 is 0.2 in narrower (75.0 in vs 74.8 in)

Practical verdicts

  • Easier to fit in a short garageBMW M6 — BMW M6 is shorter by 14.2 in Check garage fit for Buick Riviera · garage fit for BMW M6
  • Narrower for tight parkingBMW M6 — BMW M6 is narrower by 0.2 in
  • Smaller exterior footprintBMW M6 — Based on length × width (BMW M6)

Dimension comparison

SpecBuick RivieraBMW M6Difference
Length207.2 in193.0 in14.2 in
Width75.0 in74.8 in0.2 in
Height54.6 in53.9 in0.7 in
Wheelbase113.8 in112.2 in1.6 in
Ground clearance—4.2 in—
Curb weight3,713 lb4,515 lb802 lb

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

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