I just stumbed across
this video about the 1966 Le Mans race. Sure the video is focused on the Ford GT40, but there are a number of clips of the 906 Langhecks. While the GT40's took the overall win, the 906's took 4th, 5th, 6th and 7th places in addition to both their class win and the Index of Performance classification.
Not too shabby for a "kleiner" 2 liter car.
BTW;
Here's the site with the video which also has a few other interesting videos including the Derek Bell 956 lap of the Nurburgring.