The engines are 1.0-litre and 1.4-litre units which are part of a new generation of engines from the Korean company's Kappa family.
The smaller unit is a 998cc triple that's based on Hyundai's existing Kappa 1.0 litre MPI engine, albeit with various enhancements and new technologies, including direct petrol injection and a small, single-scroll turbocharger.
Developed at Hyundai's European Technical Centre in Rüsselsheim, Germany, can be tuned to produce up to 118bhp and 127lb ft of torque.
The new engine comes with an electronically controlled wastegate to optimise flow and improve low-end torque and throttle response.
The unit features a six-hole GDI injector, pressured to a higher-than-average 200 bar, securing a clean combustion and improving fuel economy and emissions to fulfil Euro 6 emission standards, three years ahead of their introduction in 2017.