https://en.wikipedia.org/wiki/The_Sleeze_Brothers
Here is the Wikipedia page on the characters in question, and while they're not exactly the best source it's important to note how the comic is described there.
"The characters were spun off from a Doctor Who comic strip by Carnell entitled "Follow That TARDIS!", published in Doctor Who Magazine #147 (April 1989), though they are not generally considered part of the Doctor Who extended universe."
That fluff about "generally" means very little to us. It's not cited, and Wikipedia's standards for "validity" are likely very different from ours. What's important is the clear suggestion that they were created for DWM and they were then spun into their own series.
What I've been able to easily find pretty strongly supports them being the same characters. Same coats, same silly hats, same flying Volkswagen. I think it's setting of "a futuristic New York" is comparable to the setting of K9.
The comics look crazy and silly but the DWM comic is crazy and silly. Whatever, right?