This price list from March 17th, 1975 is marked '20m'.

This is the first price list where the famous cocktail cabinet is shown as an available option! The intercom between driver and passenger is introduced here too. Two-tone exterior paint was mentioned in a 1968 introduction price list, but not in any later ones. Here it is back again.

The second price list of this year is from June 16th, 1975.
As the previous one, its publication no. is 20m.

The last price list of this year is from October 6th, 1975.
It has publication no. 3186. Another publication no. on the back is, once again, 20m.

An interesting detail is that the above (June) price list mentions Daimler Cars, Coventry, while this one has Leyland Cars, Longbridge, Birmingham.