Petrol
Smooth, quiet and cheaper to maintain. Best for city driving and lower yearly kilometres.
Diesel
Better fuel efficiency and strong pulling power for highways and heavy loads. Makes sense if you drive a lot each year; servicing and some parts can cost more.
CNG
The lowest running cost per kilometre where CNG stations are convenient. The cylinder takes boot space, and the CNG kit must be recorded on the RC. Factory-fitted kits are generally preferred over retrofits.
Electric
Very low running costs and minimal maintenance. On a used EV, ask about battery health, the remaining battery warranty and home charging options.
Divide your yearly kilometres by each option’s real-world efficiency to compare fuel costs.