Team V3Cars shares the fuel efficiency report of the Tata Sierra diesel-automatic and also the variation in fuel efficiency based on city and highway driving. The Hector petrol-automatic is available with a 1.5-litre, 4-cylinder, turbo petrol engine that makes 143PS of maximum power and 250Nm of peak torque. Apart from the 6-speed manual that comes with it, you can also have it with a CVT automatic transmission. Prices of the Hector manual start from Rs 11.99 lakh (ex-showroom).