None of our breeding stock that we acquired from others came with the street name "London City Diesel". Due to the high percentage of mislabeled street names we don't pay much attention to those names. If London City Diesel has been added to the Phylos BioScience DNA Galaxy we will see if they are related.
The DNA profile of Sirius City Diesel is being created this week, and will be available very soon online. We are very interested to see who the extended relatives might be.