In case it helps neither Honda nor Rover ever produced a 45 Tourer, either in prototype or production guise. The issue was the subject of much web based debate a few years ago; AR online has the definitive story.
According to Richard Woolley, a Tourer version of the 400 was "talked about", although he has no knowledge of any being built. Therefore, it never came to pass, and a small but important market niche was surrendered when the R8 version went out of production.
However, that has not stopped other people from creating their own
Both pictures above are of owner conversions.
hth
Mike
