The GenX Nano is enhanced by a 624cc MPFi Petrol Engine which churns out 38PS power and 51 Nm torque. The XE, XM & XT variants of GenX Nano are mated to a 4 speed manual transmission while the GenX Nano XMA & XTA variants come with a 5 speed automated manual transmission. The GenX Nano delivers an impressive mileage of 23.6 kmpl with manual transmission while the AMT variants deliver 21.9 kmpl making it one of the most fuel efficient car in India.
Check out the other technical specifications of Tata Nano GenX including engine, suspension, brakes, fuel tank capacity, etc. in detail below:

Overall Length 3164 mm
Overall Width 1750 mm (with ORVM)
Overall Height 1652 mm
Wheel Base 2230 mm
Ground clearance 180 mm
Minimum Turning Circle Radius 4 m
Seating Capacity 4 persons
Fuel Tank Capacity 24 Litres
Luggage Space XE, XM & XT XMA, XTA (Easy Shift)
110 Litres
94 Litres
Engine Type 624 cc, 2 cylinders Gasoline, MPFI
Maximum Power 38 PS @ 5500 +/- 250 RPM
Maximum Torque 51 Nm @ 4000 +/- 500 RPM
Top Speed 105 kmph
Transmission
XE, XM & XT
XMA, XTA (Easy Shift)

Manual
Easy Shift (Automated Manual Transmission)
with Sports Mode & Creep feature
Gears
XE, XM & XT
XMA, XTA (Easy Shift)
 
Four forward + one reverse speed
Five forward + one reverse speed
Front Independent, lower wishbone, McPherson struts with gas-filled dampers and anti-roll bar.
Rear Independent semi trailing arm with coil spring and gas filled shock absorbers
Brake Type Independent dual circuit, hydraulic brake operated by tandem master cylinder with vacuum booster
Front Drum Brake
Rear Drum Brake
XM, XMA, XT, XTA Electric Power Assisted (brushless type) with active return feature
XE Manual steering
Tyre Type Tubeless
Front Tyre size 135/70 R 12
Rear Tyre size 155/65 R 12
Spare Tyre size 135/70 R 12
Wheels Size 4 B x 12