Iv been following this for half a decade now. Only today thought others might not know of it. Did a search for "DP1" - nothing mentioned.
http://www.dpcars.net/dp1dsn/index.htm, then click the 1 in the top right corner, to take you to the 2002 design start.
The work and access to quality commercial industry work is mind boggling. I THOROUGHLY recommend brewing some coffee, and sitting down to read it from start to finish, if your at ALL mechanically minded. Keen an eye on the log dates, and the sites a little raw, and you can find yourself getting fast forwarded.
Enjoy