http://www.railwaygazette.com/news/traction-rolling-stock/single-view/view/more-siemens-charger-diesel-locomotives-ordered.html

>Cummins QSK95 engine, fitted with Selective Catalytic Reduction to meet the Tier 4 emissions standards.

It'll be interesting to see what the new engine sounds like. Cummins haven't been big into railway locomotives except for narrow gauge until now. I wonder if the same prime mover will make it into the UK market?