Spec Sizes

Porsche 911 vs Audi TT Dimensions & Size Comparison

Comparing 2003 catalog dimensions. Porsche 911 · Audi TT

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

Side view
  • Length174.5 in – 175.0 in
  • Height50.2 in – 51.8 in
  • Wheelbase92.5 in – 92.7 in
  • Ground clearance3.9 in – 4.3 in
  • Curb weight2,959 lb – 3,395 lb
Front / width
  • Width69.7 in – 72.0 in
  • Audi TT width73.1 in

Which is bigger?

  • Length: Audi TT is 15.7 in shorter (174.8 in vs 159.1 in)
  • Width: Porsche 911 is 2.3 in narrower (70.8 in vs 73.1 in)
  • Height: Audi TT is 2.0 in taller (51.0 in vs 53.0 in)
  • Wheelbase: Audi TT has a 2.9 in longer wheelbase (92.6 in vs 95.5 in)
  • Curb weight: Audi TT is 20 lb heavier (3,177 lb vs 3,197 lb)

Biggest size differences

  1. Length: Audi TT is 15.7 in shorter (174.8 in vs 159.1 in)
  2. Height: Audi TT is 2.0 in taller (51.0 in vs 53.0 in)
  3. Width: Porsche 911 is 2.3 in narrower (70.8 in vs 73.1 in)
  4. Wheelbase: Audi TT has a 2.9 in longer wheelbase (92.6 in vs 95.5 in)
  5. Curb weight: Audi TT is 20 lb heavier (3,177 lb vs 3,197 lb)

Practical verdicts

  • Easier to fit in a short garageAudi TT — Audi TT is shorter by 15.7 in Check garage fit for Porsche 911 · garage fit for Audi TT
  • Narrower for tight parkingPorsche 911 — Porsche 911 is narrower by 2.3 in
  • Smaller exterior footprintAudi TT — Based on length × width (Audi TT)

Dimension comparison

SpecPorsche 911Audi TTDifference
Length174.8 in159.1 in15.7 in
Width70.8 in73.1 in2.3 in
Height51.0 in53.0 in2.0 in
Wheelbase92.6 in95.5 in2.9 in
Ground clearance4.1 in——
Curb weight3,177 lb3,197 lb20 lb

Values use trim midpoints when a model year lists a range (e.g. length 174.5 in – 175.0 in).

Compare by year

Overlapping model years with dimension data.

Already own one of these cars?

Jump to maintenance sizes on the vehicle page — tires, wipers, battery, and oil when present in the catalog.