20 years later, Rigby is a professional cheater racer and Dick is retired and sponsors her. I fucked it up but she is supposed to have a fluffy bun/ponytail lol Also yeah I totally gave 50 years old Dick clothes his future self wore in that one future episode because even if the show shows there are several futures that change very easily at any little detail (there were 4 future different 50 years old Dick so far already, I'm allowed to make a 5th) I feel like the fashion would remain the same, he still would have had less stress (ironical since he wouldn't have had a yoga anti-cheating phase here lol) due to being a bit happier (married to Pandora and a dad) so his hair and moustache would still be raven black, still has the wrinkles though

Wacky Races, Dick Dastardly and Rigby Ruttles © Hanna Barbera and Warner Bros
Drawing, idea, theories and Rigby's adult design © me