Complex sentence: It was originally planned for the K2 to feature a powerpack comprising a Doosan Infracore Corporation 12 cylinder diesel engine and a transmission developed and manufactured by S&T Dynamics.
Split into simpler sentences: It was originally planned for the K2 to feature a powerpack comprising a Doosan Infracore Corporation 12 cylinder diesel engine. The transmission for the K2 was developed and manufactured by S&T Dynamics.