Carbike360 comprehensive Maruti Fronx Sigma 1.2L MT and Tata Altroz Smart CNG 5MT comparison based on the price, specification, fuel efficiency, features and more. Maruti Fronx Sigma 1.2L MT comes with a price of ₹7.54 Lakh and Tata Altroz Smart CNG 5MT is priced at ₹7.89 Lakh. Maruti Fronx Sigma 1.2L MT equipped with 1197 cc, 4 Cylinders Inline, 4 Valves/Cylinder, DOHC engine whereas Tata Altroz Smart CNG 5MT has1199 cc