The Mahindra Scorpio offers significantly better fuel efficiency compared to the Mahindra Thar. The ARAI claimed mileage of 16.36 Kmpl for the Scorpio is much higher than the 15.2 Kmpl of the Thar. This makes the Scorpio a better choice for those who are looking for a car with great mileage. Furthermore, the Scorpio also offers better performance, making it a great option for those who are looking for an SUV that is both fuel-efficient and powerful.