that the designer credited with this
also designed the Argento Vivo (at Pininfarina)
AND the Peugeot 406 Coupe (also at Pininfarina).
Davide Arcangeli died of leukemia in 2004, and didn't get to see the E60 on the road.
Not many of his sketches out there, since most of his work was pre-internet-profusion, but here's one of the E60's development. I remember reading about it in Auto&Design many years ago, but I don't have a copy and can't find one.