Hi Naveen,
I do not think the base level has brake assists, but you can write an email to skoda customer care and you will get the info more over you can check on skoda website.
Spare parts are all same, I have an hyundaii10 and fabia, hyundaii10 i have to leave the car for 1st service in the first month and next is after 6 months and then after a year thats it only 1 year service, where as my skoda after 1 year from the time i bought the car, more convinient and i have not visited service station from the time i have bought the car, have gone to mangalore in one of the worst road i have scraped my cars bottom (Do not assume that the car is very low floored infact all cars were scraping the road, include the volvo bus also)but no signs of the car giving up on any issue.
Now comparing i10 and fabia:
I have i10 1.2liters which is same as i20 and fabia.
What i find difference is the shocks are excellent in fabia it does not throw the back people ouutside the car(Joking), but the shoks in fabia are excelent.
Interiors are cool in fabia and it has a rich look compared to i10 and i20
i20 has good electonics inside compared to fabia.
Fabia has a thick skin but the i10,i20 are like tin cans.
safety features are also good: ABS,Brake Assist,Air bag,Shear and bolt(In case of accident the engine falls to the ground rather than entering the cabin)
Fog lamps with DRL cool.
One thing missing is gear shift indicator and turn indicators on the lamp
Good discount: i got 50K on fabia elegance petrol where as i10 i got around 30K or so.
Leg room is good in both.
Service wise Hyundai and skoda service station is same in bangalore some people cheat and some are true, i found skoda kinda okay compared to hyundai.
Mileage is one thing i have to check both will give me same +-2Kms difference, it aslo depends on location of drive and traffic.
Sine you are looking for base variant i think that also has more features than i10 magna(Safety features)
Though the i10 is my dad's i find that these are the basic differences between the 2.
If you buy an i10,i20 or fabia if you have luck you will get good car if not any manufacturer you cannot do anything all sail in same boat.
Regards
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Santosh
maruti 800,hyundai santro,skoda fabia