AFAIK, the manufacturer's (FMC) designation was M113 C&R (Command & Reconnaissance).
The Royal Netherlands Army designated it as
M113 C&V. "C&V" stands for
Commando & Verkenning, which is Dutch for Command & Reconnaissance. The first 250 manufactured went to the Netherlands in 1966, the rest went to Canada so you could be right about the CR1 and CR2.
First picture shows one in preservation at the National Military Museum, the second on shows the fate of most of them - range target! Although a number have been exported to Chile, I believe.
