I occasionaly look through the GM pwoer train website to see whta the latest tech stuff coming along is.

http://www.gm.com/automotive/gmpowertrain/

Some interesting bits on:

The 2.2 Ecotec engine used by Opel (availabel mainlya s a 2.4 in the states)

There is also the northstar engine which nearly made it into a production Omega

The Vortec power unit, the latest V6 available in 2.8V6 turbo form in the Saaba dn Vectra in europe ( a 3.2 version is used by Alfa)

Plus many others......