The Sierra EV is Tata’s second all-electric SUV to offer a dual-motor all-wheel-drive (AWD) setup, positioned below the Harrier EV, which also gets an AWD option. Both SUVs share a 75kWh battery pack, similar motor specifications and a claimed ARAI range of over 600km, but the Sierra EV is smaller and lighter. So, does it deliver better real-world range? We put both to the test to find out.