I'm confused.

I've had CUDA on the license plate of my 64 Barracuda since 1972. The Plymouth dealership for the town I grew up in had a 1964 Barracuda drag car and in 1967 and 1968 it was white with big red and blue billboard letters down the side that said CUDA. As was previously mentioned, they were called Cuda's since 1964 and Plymouth adopted the name to use to differentiate models in 1969.