Tata 's new 1.5-litre turbo-petrol is smooth, refined and deceptively quick. And if you're someone who likes a linear power delivery, you're likely to love the Tata Sierra for the way it performs. Yes, its engine isn't high revving, still it builds speeds rapidly, and has plenty of pulling power to make quick overtakes. Alternatively, you could look at the Mahindra XUV700 petrol too, which is another strong performer. Can’t decide which car to buy? Ask our experts and get answers to all your car related queries. Ask experts Latest questions Asked by: Malhar Inamdar I am quite impressed with the new Sierra, but am confused about the variant and engine options. My annual running may not exceed 7,000km, as I do not stay in India, and my family will hardly use such a big car. However, whenever I visit India (once a quarter), I would like to take the car out on road drives and enjoy a pleasant driving experience. I am currently considering the Accomplished or Accomplished+1.5 Turbo Hyperion AT. Could you please advise if this is a good choice based on the details I have shared? Given your low running, yes, a petrol Tata Sierra would make perfect sense. We have yet to drive the naturally aspirated petrol; however, given that you do take pleasure in driving, the 1.5 L turbo engine would be just right for you.The unit is refined and delivers power in a strong and linear fashion. To know more, you can check our full review, which is live now on our website. Asked by: Manu I am planning to buy a new car within a budget of Rs 15 to 20 lakh. My daily drive is around 10km, with two trips of about 80km each month, and two or three long drives in a year. Normally, I travel alone, but on long trips, I travel with a family of four adults. I am confused about the transmission and powertrain choices: EV vs petrol vs hybrid. I have shortlisted the Curvv, Clavis, and Sierra. Please suggest. Given your very low daily and monthly driving usage, an electric car sounds like it would make the most sense, but on your 2-3 long drives, the range restriction might prove an inconvenience. Moreover, given your limited usage, the extra purchase cost of the EV may not be justified, and all the EVs you have shortlisted are either at the very edge of your budget or above it. Thus, a frugal, low-maintenance petrol car or a hybrid might make more sense for you.Amongst the cars you have mentioned, the Tata Sierra petrol seems like a good bet - it's more spacious than the Curvv, and comfier than the Kia Carens Clavis. However, you should consider a hybrid, like the Maruti Suzuki Victoris, of which you can get the mid-range ZXi variant in your budget of Rs 20 lakh. Asked by: Saurabh Sharm Sir, I recently sold my 2015 4WD CRDe Thar due to restrictions in NCR. I am a birder and an off-roader, and my wife shares the same passion. I am recently retired and am now looking for a 4WD off-road-capable vehicle in the price range of Rs 20 lakh. The Sierra was a letdown, as no AWD or 4WD is offered currently. Given your passion for adventure, off-roading and birding, your best bet is to stick with Mahindra and get the new Thar. Whether the Thar 3 Door or the Roxx, you get a wide range of smooth and powerful engines and gearboxes of your choosing, and exceptional off-roading ability.What's more, the new Thars are far more comfortable, luxurious and easy to live with, with loads of creature comforts, making them usable every day - especially the Thar Roxx, which is also much more spacious than the old Thar. Asked by: Puneet Batham My monthly running is 500km or less, with one long tour every 3 to 6 months of around 1,200 to 1,300km to and fro. I am confused between the petrol automatic versions of the Tata Sierra, Mahindra 7XO, and the upcoming Kia Seltos. All three fall within my budget. My priorities are safety and fuel efficiency. Kindly advise. Given your requirements, you should first rule out the Mahindra XUV 7XO (XUV700 facelift) because while it has the most powerful petrol engine with 200hp on offer, its fuel economy, particularly for the automatic version, is very low.While the new Kia Seltos is likely to use the same petrol engines as the current Seltos, not much else is known about the car at present, including its price or fuel efficiency. Thus, we think it's better for you to go with the Tata Sierra petrol automatic.You get two options of petrol automatics - 1.5 naturally aspirated with a DCT, or 1.5 turbo-petrol with a torque converter AT - and given Tata's stellar track record, you can bet it will score high on safety too. View all questions Can’t decide which car to buy? Ask our experts and get answers to all your car related queries. Ask experts