Subaru's rally cars are all converted from RHD to LHD.

The base car kasi is a STI Spec-C which comes from Japan in RHD, then Prodrive, and later Vermont Sports Car do the build along with the conversion to LHD.

So for a decades now the best LHD Impreza have actually been RHD conversions.

Check out this timelapse of a VSC Rally Car build, you can clearly see at the start it's RHD then at the end it's LHD na.