Compare Dimensions Side by Side
1978 Porsche 928 vs. 1974 Porsche 911 Coupe

Compare the size of two cars side by side and see their differences at a glance. Simply enter the vehicle names, and our tool creates a clear visual comparison of their length, width, and height. This makes it easy to find out which car is longer, wider, or taller, and helps you better understand their overall proportions. Whether you are checking if a car will fit in your garage, comparing everyday models, or exploring larger SUVs, this tool provides a straightforward way to see all key dimensions in one place.

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      Here’s how the 1978 Porsche 928 and the 1974 Porsche 911 Coupe compare in size:

      In terms of length, the 1978 Porsche 928 measures 4523 mm (178.07 in), making it 232 mm (9.13 in) (5.1 %) longer than the 1974 Porsche 911 Coupe at 4291 mm (168.94 in). Looking at width, the 1978 Porsche 928 spans 1890 mm (74.41 in), which is 115 mm (4.53 in) (6.1 %) broader than the 1974 Porsche 911 Coupe at 1775 mm (69.88 in). As for height, the 1974 Porsche 911 Coupe reaches 1320 mm (51.97 in), which is 7 mm (0.28 in) (0.5 %) taller than the 1978 Porsche 928 at 1313 mm (51.69 in).

      Overall, the 1978 Porsche 928 is longer and wider than the 1974 Porsche 911 Coupe, while the 1974 Porsche 911 Coupe is taller than the 1978 Porsche 928.

      Length
      4523 mm178.1 in
      4291 mm168.9 in
      Width
      1890 mm74.4 in
      1775 mm69.9 in
      Height
      1313 mm51.7 in
      1320 mm52.0 in

      1978 Porsche 928 Side View Left
      4523 mm178.1 in 🟒 +232 mm+9.1 in (+5.4%)
      1974 Porsche 911 Coupe Preview
      4291 mm168.9 in πŸ”΄ -232 mm-9.1 in (-5.1%)
      1978 Porsche 928 Preview
      1890 mm74.4 in 🟒 +115 mm+4.5 in (+6.5%)
      1974 Porsche 911 Coupe Front View
      1775 mm69.9 in πŸ”΄ -115 mm-4.5 in (-6.1%)
      1978 Porsche 928 Preview
      1313 mm51.7 in πŸ”΄ -7 mm-0.3 in (-0.5%)
      1974 Porsche 911 Coupe Rear View
      1320 mm52.0 in 🟒 +7 mm+0.3 in (+0.5%)
      1978 Porsche 928
      1974 Porsche 911 Coupe

      Side-by-Side Specs: Dimensions, Weight & More

      General Info

      Body Style:

      Coupe
      Coupe

      Model Year:

      1978
      1974

      Production:

      1977-1995 Discontinued Model
      1975-1989 Discontinued Model

      Dimensions

      Length:

      4447-4523 mm175.1-178.1 in
      🟒 +156 mm+6.1 in (+3.6%) - 🟒 +232 mm+9.1 in (+5.4%)
      4291 mm168.9 in
      πŸ”΄ -232 mm-9.1 in (-5.1%) - πŸ”΄ -156 mm-6.1 in (-3.5%)

      Width:

      1836-1890 mm72.3-74.4 in
      🟒 +61 mm+2.4 in (+3.4%) - 🟒 +115 mm+4.5 in (+6.5%)
      1775 mm69.9 in
      πŸ”΄ -115 mm-4.5 in (-6.1%) - πŸ”΄ -61 mm-2.4 in (-3.3%)

      Width (Folded Mirrors):

      -
      -

      Width (Opened Mirrors):

      2028 mm79.8 in
      -

      Height:

      1280-1313 mm50.4-51.7 in
      πŸ”΄ -40 mm-1.6 in (-3.0%) - 🟒 +33 mm+1.3 in (+2.6%)
      1280-1320 mm50.4-52.0 in
      πŸ”΄ -33 mm-1.3 in (-2.5%) - 🟒 +40 mm+1.6 in (+3.1%)

      Ground Clearance:

      115-125 mm4.5-4.9 in
      πŸ”΄ -42 mm-1.7 in (-26.8%) - 🟒 +5 mm+0.2 in (+4.2%)
      120-157 mm4.7-6.2 in
      πŸ”΄ -5 mm-0.2 in (-4.0%) - 🟒 +42 mm+1.7 in (+36.5%)

      Trunk Capacity:

      200 liter7.1 cu ft
      -

      Trunk Capacity (Max):

      400 liter14.1 cu ft
      -

      Weight Specifications

      Curb Weight:

      1450-1650 kg3197-3638 lbs
      🟒 +115 kg+254 lbs (+8.6%) - 🟒 +510 kg+1124 lbs (+44.7%)
      1140-1335 kg2513-2943 lbs
      πŸ”΄ -510 kg-1124 lbs (-30.9%) - πŸ”΄ -115 kg-254 lbs (-7.9%)

      Maximal permitted Weight:

      1780-1960 kg3924-4321 lbs
      🟒 +100 kg+220 lbs (+6.0%) - 🟒 +435 kg+959 lbs (+28.5%)
      1525-1680 kg3362-3704 lbs
      πŸ”΄ -435 kg-959 lbs (-22.2%) - πŸ”΄ -100 kg-220 lbs (-5.6%)

      Roof Load:

      35-75 kg77-165 lbs
      πŸ”΄ -40 kg-88 lbs (-53.3%) - 🟒 +40 kg+88 lbs (+114.3%)
      35-75 kg77-165 lbs
      πŸ”΄ -40 kg-88 lbs (-53.3%) - 🟒 +40 kg+88 lbs (+114.3%)

      Tire Specifications

      Rims Size:

      16-inch rims:
      • 7J x 16
      • 7.5J x 16
      • 7J x16
      • 8J x 16
      17-inch rims:
      • 9J x 17
      • 7.5J x 17
      16-inch rims:
      • 8J x 16
      • 7J x 16
      • 9J x 16
      15-inch rims:
      • 8J x 15
      • 7J x 15

      Tire Size:

      • 225/45 ZR17 (W:225 | H:45 | D:17)
      • 225/50 R16 (W:225 | H:50 | D:16)
      • 225/50 VR16 (W:225 | H:50 | D:16)
      • 225/50 ZR16 (W:225 | H:50 | D:16)
      • 225/60 VR16 (W:225 | H:60 | D:16)
      • 245/45 ZR16 (W:245 | H:45 | D:16)
      • 255/40 ZR17 (W:255 | H:40 | D:17)
      • 185/70 R15 (W:185 | H:70 | D:15)
      • 205/50 R15 (W:205 | H:50 | D:15)
      • 205/55 R16 (W:205 | H:55 | D:16)
      • 215/60 R15 (W:215 | H:60 | D:15)
      • 225/50 R5 (W:225 | H:50 | D:5)
      • 225/50 R16 (W:225 | H:50 | D:16)
      • 245/45 R16 (W:245 | H:45 | D:16)

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