I am planning to buy a car in the Rs 12-13 lakh price range and will travel around 1,000-1,200km on the highway every month. Should I go for the Sonet diesel, or would a petrol car be a better choice? If petrol is the better option, please suggest cars with good mileage, as fuel efficiency is my main concern.
With 1,000-1,200 km of highway driving per month, the Kia Sonet diesel is a sensible choice. At that kind of running, the fuel cost savings of diesel over petrol become meaningful, especially on highways where diesel engines are at their most efficient. The Sonet diesel is a strong highway performer, with good torque for overtaking and a relaxed cruising nature. It is also a well-rounded package with a comfortable ride and a decent feature set.
If you are open to petrol, the Maruti Suzuki Brezza is the best alternative. It is one of the most fuel-efficient petrol SUVs in the segment, and Maruti's ownership experience and service reach are hard to beat. However, the fuel cost difference compared to diesel will still be noticeable in your running costs.
Kia Sonet
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Posted on: 6 Sept 2026
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