Wrong analysis!! If trade is not with India, then it would be with someone else. What's big in it.
What if uae expel out all indian population from uae today, all trade will get disolved with that step (I know its not practical, just for sake to give understanding). Its vice-versa, check the amount of foreign reserve indian expats living in uae are filling every month back-home in indian banks.
Regarding cars, you should visit uae to check the infinite number of super-cars here.
Nothing personal, India is also getting very strong in every feild but saying that its "only India" is not a fair talk 
