Paul Bracq did design the W 115 and worked at the W 108/W 109.
He left to work for BMW in the early 70ties and designed the turbo (which set the design for the later M 1)
and the BMW E 12.
He later worked for Peugeot and designed the dashboard of the Peugeot 205.
As far as I know, he also did some work at the TGV for the french railroad.
Kind regards
Eberhard