Mahindra Thar comes with a diesel engine in single variant. The NEF CRDe Turbocharged Intercooled, euro IV engine comes with a displacement of 2498cc. The 5 Speed Manual Transmission Gearbox offers a very good mileage 11 in the city roads and 13.5 kmpl on the highways. The other Di engine has a displacement of 2523 cc and delivers 12 kmpl although the company claims that it delivers 16 kmpl mileage.
Mahindra Thar is a very basic vehicle and is a primary choice in case you are looking for regular off roading. Mahindra Thar is a pure off roader and you would not want to use it as a regular family vehicle or for daily needs as interiors and features are not provided in it for this purpose. Its level of practical usage is relatively limited due to the fit, kit and lack of basic creature comforts. Thar has a killer looks but you will regret later on daily use. It's best maintained as an alternate vehicle.