JDM version is IST. UK/Europe version is Urban Cruiser, US version is known as the Scion XD.
http://en.wikipedia.org/wiki/Toyota_ist
http://en.wikipedia.org/wiki/Scion_xD
Market price now for second hand = 31 - 35 lakhs. (Depends on the mileage) I have a KN - number one bought it in 2011 (unregistered) with a milage of 31000. costed around 38.5 lakhs. A very sporty car. feels much like a jeep. Petrol consumption is around 12 on normal traffic (given that theres no 20 min or so traffic blocks

) and on highway it goes past 14. From what I know it has the same engine specs. as of the 121 corolla but weighs 50Kg more than it. 16 inch wheels are stock sizes which given good ground clearance so you can go over most areas without hassle. The large wheels and the heaviness of the car gives good stability so braking is superb. It stops nearly on the spot.
My advice is to go for a 1.5L one cos you will have no doubts when overtaking. The "S" mode of the gear gives a nice boost when overtaking in short distances.
Maintenance cost is not high, parts are readily available on any toyota showroom.
