Firstly, for such a small engine the EcoBoost 1.0 delivers a healthy wallop of torque at low rpm. Secondly, it feels and sounds very much like a small diesel engine, even though it runs on The petrols kick off with two versions of the 1.0-litre Ecoboost three-cylinder engine, in either 100 or 125 trim, and a 1.6 125 four-cylinder unit, while diesels come in 1.5 TDCi and 2.0 TDCi 7FiAos.