There won't be any!
"The e-mail from EA also mentioned a couple of other interesting features:
NFS III will be an "organic" product, which is apparently marketingspeak for
"dynamic". Rather than releasing Special Editions, updates will be available
over the Internet (e.g. downloadable cars). Car physics and artificial
intelligence are being completely rewritten. Also on the list were the
ability to play as the cops, and an enlarged car list, which we already know
about."
--
Buy Unreal. Now, damn you!