Directors' Dealings

Ricardo PLC
10 December 1999

                  RICARDO PLC - DIRECTORS' INTERESTS IN SHARES

On 9 December 1999 Ricardo Quest Trustees Limited, a wholly-owned subsidiary of
Ricardo plc, as trustee of the Ricardo Qualifying Employee Share Ownership Trust
(the 'QUEST') acquired by subscription, at a price of 435p per share, a total of
60,589 ordinary shares of 25p each in Ricardo plc (all of which are to be used
to satisfy options exercised under the Company's savings-related share option
scheme). As potential beneficiaries under the QUEST, each executive director of
Ricardo plc is treated as being interested in all shares acquired by the QUEST.
As of today's date, the QUEST holds 179,235 shares in the Company.

The directors of Ricardo plc who may be considered to be potential beneficiaries
of the shares detailed in this notification are:


Sir Noel Davies
C W Foreman 
P T Ward
R J Westhead
A R Goodburn 
J R Needham

Name of contact and telephone number for queries:
M Wightman  Tel:   [phone]