Looking past the features, technology, and cabin comforts of the Tata Curvv - all of which are almost identical to the offering on the Curvv EV - the big change is of course the internal combustion engine powertrains in the car. You get petrol and diesel options for this - the older Revotron (1.2L petrol), the newer Hyperion (1.2L petrol), and Kyrojet (1.5L diesel). For the review drive, I had a chance to experience the Hyperion with manual transmission, and Kryojet with dual-clutch automatic transmission.
The Kryojet diesel engine delivers up to 116bhp of power and 260Nm of torque, and paired with the DCT, was an absolute belter to drive, especially in Sport mode. Driving the car around Goa, I put the car through its paces across various road conditions, including slow country roads, mountain roads, and wide multi-lane highways, and the diesel managed to excel in just about every condition.
The automatic transmission on the Tata Curvv diesel was quick, responsive, and capable across speeds and gears, usually switching seamlessly and at the right time, or going by my throttle inputs to hold in a particular gear for a bit longer. The Sport mode was particularly fun to drive with, and the specific tuning of the mode was very handy when driving on winding mountain roads. Downhill stretches occasionally confused the DC transmission, but the paddle shifters allowed me to quickly override and select gears myself when needed.
The three different modes - Eco, City, and Sport - are present even on the manual transmission for select variants, which I got to try out on the 1.2L Hyperion petrol engine. This engine has the same capacity and number of cylinders as the Revotron, but is tuned for a little more horsepower and a lot more torque. There is also a ‘torque boost’ feature which kicks in after the third gear, to give up to 250Nm torque in certain conditions, as per Tata.
The engine was indeed responsive, and the torque boost worked as stated, giving the car quite a bit of bite in third gear. However, the manual transmission did take a bit of getting used to. That said, I found the diesel to be a lot more fun to drive, and the automatic transmission to be excellent, so I’d only suggest the manual transmission option to purists who want full control of the car when driving.