Dont worry garv The spares are not going to be required for you this year ,anyway they have made enough Brios that Honda will not stop producing it.
Warranty is there right?
Honda engines lasts the longest.
Here in Bangalore I can find the first generation Honda citys a lot in good condition.
If you want this car ,happy with the deal, happy with the pricing ,don't worry about spares.
Just check the regular service costs at 5K,10K,and 20K Kms. Thats the expense you have to incur for the first 2 3 years.
Just for curiosity whats the cost of Brio with ABS
.Can it fit inside your 5L?