from SC 13D
1 page
<page> Exhibit 1 Joint Filing Agreement the Undersigned Hereby Agree That the Statement on Schedule 13d With Respect to the Common Stock of Cobalt Group, Inc. Is, and Any Amendment Thereto Signed by Each of the Undersigned Shall Be, Filed on Behalf of Each Undersigned Pursuant to and in Accordance With the Provisions of 13d-1(k) Under the Securities Exchange Act of 1934, as Amended. Dated: July 7, 2000 Warburg, Pincus Equity Partners, L.P. By: Warburg, Pincus & Co., General Partner By: /S/ Stephen Distler Stephen Distler Partner Warburg, Pincus & Co. By: /S/ Stephen Distler Stephen Distler Partner E.M. Warburg, Pincus & Co., LLC By: /S/ Stephen Distler Stephen Distler Member
