The ‘T’ in T-GDI stands for turbocharged, but the ‘D’ doesn’t stand for diesel. This petrol engine will feel more modern than the VTI-tech engine mentioned above although, in this case, the on-paper statistics for efficiency and performance aren’t vastly better. On the ZS you get a 1.0-litre T-GDI engine, whereas the bigger HS gets a 1.5-litre version. Manual and automatic gearboxes are available on these turbocharged engines.