BMW India — Breakdowns and spare cars

I have owned many cars; but the worst overall (product+service) experience I have had is with a car that is most expensive and considered 'premium'. Two experiences where the 530i ended up at the service centre for 10+ days.
1. Trip to Chikmaglur and 3 of the 4 tyres get damaged. First I dont understand how the tyres are chosen so poorly that one cant drive on Indian highways in peace. Second, spare tyre management is so poor that I get the car only after 10 days!
2. Short spell of rains in Bangalore this monday (12 June) and my car goes into hydrostatic shock!! Bang in the middle of a busy road when all cars, bikes, buses, autos are moving on lanes on either side!! First, a delicate car that can't take water in the roads. Second, estimate of 20-30 days in the service centre for inspection and repair.

In all this, there is no provision or offer of a loaner or spare car for customers who have bought a premium product even for their range. What is the use of a car that sits in the service centre for 2 months in a year. Any escalation meets with the standard answers (1) not our policy to provide cars for major repairs (unsaid thing is that it is not required in cases of minor repairs (2) loaner vehicles are not available (indication of how many cars are sitting in service centres. I have shouted and ranted enough with Navnit motors. Hoping BMW India steps in. Else you just have a very disgruntled customer for any word of mouth. Most i can say for the car is that it is good when it works - but be prepared for many and long periods when it doesn't! Hope someone reaches out and fixes some of the big large issues that need urgent fixing when building a premium brand!