Hi Nico 911,
So the slant-nose was only available as a special option from 1981 ... 1981=Light in bumper) Don't know build-number that year.
The first slant-nose ever made was on 16 of July 1981 and had Vin 93ZBS000619
But those where different so what
In 1987 you could order a standard slant-nose (a state of original option) M506.
So here we go;
1982 = 38
1983 = 35
1984 = 34
1985 = 44
1986 = 52
1987 = 33
TOTAL = 236
Standard slant-nose from 1987
1987 = 200 (930S-N VS)
1988 = 278 (930S-N VS)
1989 = 147 (930S-N VS)
TOTAL = 625
Hope this helps