known as the Gen3 was introduced in 2015, and uses the 1.6 L Sigma engine. The engine is sold by SCCA Enterprises as a sealed unit. Zetec-E comparison The Zetec-SE has no common parts or design with the larger Zetec-E engines apart from the name. This gives rise to some confusion since it suggests that they are members of the same family when they are, in fact, completely different. Zetec-E units are mounted transversely with the inlet manifold at the rear, whereas the Zetec-SE units are mounted with the inlet manifold at the front. Replacement In 2012 Ford replaced the Sigma engine with a brand new 3-cylinder 1.0–litre EcoBoost engine for some markets and models. The new engine provides more power and torque with less fuel consumption and lower emissions. See also List of Ford engines References Sigma Gasoline engines by model Straight-four engines