The Sukhoi Su-35 is a Russian 4+ generation heavy class, long-range, multi-role fighter. Due to the similar features and components it contains, the Sukhoi Su-35 is considered to be a close cousin of the Sukhoi Su-30MKI, a specialized version of the Su-30 for India. It has been further developed into the Su-35BM. The Su-35 is in service in small numbers with the Russian Air Force with 12 in service as of 2008.
No Longer There
Single-seat fighter with upgraded avionics and various modifications to the airframe.
Links: en.wikipedia.org, www.airliners.net