asked the Chancellor of the Exchequer if he will consider the repeal of the duty of 9d. per gallon on motor spirit used for research and experimental purposes and for engine testing by motor manufacturers; and if motor spirit so used will be placed in the same category as diesel oil used for engine testing.

The hon. Member will not expect me to anticipate the Budget Statement.

Having anticipated that reply, may I ask whether the Chancellor will keep this suggestion in the background in the preparation of his Budget?