Been reading a fascinating 8-page writeup of CAR magazine's Marina Estate project. CAR did one estate using mostly ST bolt-on parts, and their own body kit. BL then did another, as an upmarket "shooting brake" in the Van den Plas mould (looks lovely).
Wonder if either of these cars survive, or if CAR's body kit ever made it to market?
Morris Marina Marauder Estate CAR Conversion Test 1974
A number of other road tests can be found
here.