GM Adding New Inline Engines

GM said that it will add two new engines, an inline four- and five-cylinder, to its truck
lineup. The Vortec I-4 and I-5 engines are based on the Vortec 4200 I-6 engine, which was
introduced on 2002 Chevrolet TrailBlazers, GMC Envoys and Oldsmobile Bravadas.