I got the extended warranty and SVP(Service Value Plan) with my Polo when I bought it and here is my experience:
- My batch came with faulty ABS sensors and over the first 3 years all 4 of them failed one by one and they were replaced for free. It's been more than 2 years now since the last one was changed and everything is good so far with the ABS.
- I hit a huge pot hole in the 3nd year which resulted in my front left tyre getting a bubble and while I had just missed the warranty claim on the tyre, what I got was the entire steering rack changed in the next annual service as there were some issues with it. This was replaced under the extended warranty plan.
- I got a few parts free with my SVP which was an added bonus. I got 2 sets of wipers(Consumed 1 set so far), A battery that I changed this year (It's been 5 years since I got the car) and a set of break pads and rotors(Which I need to claim before March 27)
With the above experiences, I would say the total cost of paying around 30-40k while buying the car for this extended warranty and SVP was totally worth it as the total cost of all the things I recieved is well over a lakh at this point.
The only point I would stress is to listen to what @gauravdhakate has commented about buying the SVP just a week before your car turns 1 year because you SVP will end 4 years later from that date. In my case, I had a good offer while buying and I didn't know that if I bought at the end of the year, the plan would extended.