Hyundai Aura comes with three BS6 engine options: two petrol and one diesel. It is powered by the Grand i10 Nios’ 1.2-litre petrol and diesel engines. Both are paired to a 5-speed manual and the 1.2-litre petrol gets a CNG variant too. The 1.2-litre engines get the option of a 5-speed AMT too. However, the turbo-petrol engine is only available with a 5-speed manual.
As your driving is less then the petrol variant is a good choice to go as it will reduce the maintenance cost of the vehicle and longevity of the vehicle. Although both SX and SX(O) will be having the same engine and performance. The only difference you will see is in features. Moreover, you can click on the link to see the complete comparison. Also, we\'d suggest taking the test drive so that you can understand the difference - Car Showrooms.