I would like to see the Mustang fitted with turbo prop power. That would be a wicked combination.
A company called Cavalier remanufactured P-51's in the 60's to sell to 3rd world countries. Eventually they decided to fit one with a turboprop (above) to see if they could find a buyer. They couldn't.
Eventually they sold out to Piper who tried again with the PA-48 Piper Enforcer. They had no luck either although there are a couple prototypes in museums.
bttt