It is very encouraging trial results.

http://uk.ibtimes.com/articles/20101117/tata-039electric-car-makes-appearance.htm

Developed by the Indian firm's subsidiary, Tata Motors European Technical Centre (TMETC), the supermini won the Most Economic Small Passenger EV and the Most Economical & Environment Friendly Small Passenger EV under the Small Passenger EV Category as part of the inaugural event.

The Tata Indica Vista EVX completed the journey from Brighton to London at a highly economical energy cost of just £1.35. This compares very favourably to journey costs of £6.17 and £4.80 for a similar sized vehicle running either a petrol or diesel engine at standard energy prices. The 60 mile route was completed with only a 36 per cent depletion of the car's lithium ion phosphate batteries too. This would give a vehicle range, in typical real-world driving conditions, of approximately 160 miles, producing an efficiency equivalent mileage of 176 mpg plug to wheel.

Unlike Tata's tiny Nano EV, based on the world's cheapest car of the same name, the Indica Vista EVX is designed much more for European tastes and standards. Based on the firm's hugely popular petrol/diesel car Indica Vista, the EV model will be capable of carrying four individuals plus their luggage, and is predicted to have a range of up to 200 km on a single charge and acceleration of 0-60 kmph in under 10 seconds. It is planned to go into full production in the UK and will go on sale in Europe next year.