"You say that Lance and Chuck Daigh raced the two Scarabs and that Lance reserved the third for his personal use.  It is pretty well documented that the car that Lance had converted for his personal use was the first car built and also the only one of the three built as a left hand driver.  It was the car that he usually raced (#16).  Lance raced car # 3 at Riverside along side Chuck because he had wrecked # 16 in practice and took over the car assigned to Bruce Kessler for the race.  The two Scarabs started on the front row with Phil Hill's Ferrari 412MI between them. 

The third car was rarely raced as it was generally needed for parts for the other two cars and was completely rebuilt by Dick Troutman after it was severely damaged (nearly cut in half by a tree some years later).  It belongs to the Collier Museum back east now. It has a wider nose than the race cars because Troutman forgot that they had taken a 6" pie-shaped piece out of the front of the cars when they found that they looked too wide initially.  Augie Pabst owns the second car built (Chuck's #5 from the Riverside win) that he got for a song (some say around $500) in the Meister Brauser bankruptcy sale."