Do you want to find out which car is the best, Hyundai Aura or Tata Sierra ? CarnBikeCafe brings you a detailed comparison between Hyundai Aura and Tata Sierra . Hyundai Aura Price starts at Rs.6.49 Lakh (ex-showroom) for E 1.2L Kappa 5-Speed MT and Tata Sierra Price starts at Rs.15.00 Lakh (ex-showroom) for Smart 1.2 5 Speed. 649000.00 is cylinder, 1197 cc Engine can generate 83 bhp @ 6000 rpm power whereas 1500000.00 is a cylinder, 1199 cc Engine can generate 118.27 bhp @ 5500 rpm power. In terms of mileage, Hyundai Aura provides a mileage of 17.5 kmpl (base model), and Tata Sierra has a mileage of 17.44 kmpl (base model).