Hey frens sorry for the late reply was a bit preoccupied with work
@ Vits555:- Planning to go for a corolla its a good choice i am sure u wont be disappointed with the decision.
I got the CNG kit fitted from the guys who do the fitting for the Sai Service maruthi people so he is pretty experienced in that field. I did not opt for any brand but just gave him the car directly for conversion as they do the fittings for sai service so surely they will be using the best but incase you want the name it is a Longas Italy kit. it is a sequential kit. The kit comes with a one year warranty and break down assistance. The people come to your place pick up the vehicle, fit the kit and drop the vehicle back to your place and they them self do the registration of CNG on your RC book. As of seeing a CNG fitted corolla i have seen almost each and every petrol car at the CNG Pump in the Last 8 mnths of my use from small cars like santros and Wagon R to luxury sedans like Mercedes C Class also. It doesnt matter if the car is automatic or Manual it works fine for all but just found out that they do not match for Turbo Petrols so a big no for the Laura RS and The VW Tsi and the fiat TJets. Its just that on the Automatics the car would give a bit less average.
Now i have not diven the car much but till date in my 8 mnths of usage i have used the car for around 8k kms and touchwood it runs like a dream. about spares atleast here in mumbai all the spares are available and they are pretty cheap compared to the other cars in the segment. I had done the brakes work when i had just baught the car for my safety and the new original toyota brake pads both for front and rear and the disk polish with lobour cost me around 4k and recently after the usage of arund 7.5 k kms i got the front suspension completly changed from the front shocks to the mountings,thyroids and a lot of other work with labour for around 15k which is dam cheap if you compare it to a civic or say even a honda cit i -Vtec. Now i dont know about the gear box because u will be choosing an automatic so anything related to that i have no idea but it shud be pretty expensive.
But yes rest all the spares a pretty cheap compared to the price range of the car.
I can say one thing now u might have a lot of questions but once u start deiving it u wont have any.Its a dream to drive till date i have met people who have always told me negative things about CNG that no pickup, Screws the engine and all but i have not experienced any of that. Its got power,milage, smoothness, comfort everything wat else does someone want. The more i drive it the more i fall in love with it.
@Iron Rock-The largest size of a CNG tank for a sedan or SUV/MUV is 14kgs and that too it will just fill up to say max of 10kgs of gas so say if you car gives an average of 20 it will run a max of 200kms on full tank. Thats the biggest drawback of CNG it has a small capacity believe me if it had a bigger capacity each and every car on india wud hav been running on CNG.
Now just waiting for CNG pumps to be set in every part and every city of the Country then we might be able to use it for a longer journey.
Hope this helps you'll , do feel free to ask any more queries will surely try to help if within my reach.