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In page Porsche 928:

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  • Wheel design changed to "Cup II", RDK deleted at same time.
  • First 19 US models were made already in spring of 1993, months before when normal model year change occurs in July/August. These M718 option cars still used previous model year parts like Cup I wheels and do not have 1994 model year updates despite using same 1994 VIN sequence.
  • Connecting rods changed to stronger design part in middle of model year.