@sohail
well well well... so i have to write all that again. in my opinion, platz is a better option than a vitz. why? kuz it also has a boot which is p[retty much spacious enough even after the CNG installation. not as big as a rolla or a city,but then, its a 1000 cc car and shall not be compared with those. as far as the performance on CNG is concerned, look for a manual transmission one, and get it CNGed, and i assure u it runs as smooth as anything. i personally have a 2003 model one with me and have CNG in it. it has a 60 kg cylinder and in local it gives me 200 gm REGULARLY on one cylinder. on long route, it gives me more than 250 km. if u dont belive me, visit me sometimes and i can verify it. for more queries, u can mail me. thankz. once again...DONT BUY AN AUTOMATIC ONE....:)PEACE