Is there any existing emulator(except glidos)??
yes, evoodoo
I played nfs2se with glide on dgVoodoo few days ago, no problems :) (dgVoodoo website - http://dege.freeweb.hu/)
another excellent one:
zeckensack's Glide wrapper (uses OpenGL for rendering)
http://www.zeckensack.de/glide/
dgvoodoo and zeckensack's Glide wrapper are both very good,but avoid evoodoo,its old and has issues (mainly performance)