Mailed? Haha. Phone uthao aur number ghumao. Call itni mehngi nahin parti. Let's assume you can afford a 5.1 million car, but can't make a call worth 5 or so Rupees. That just doesn't add up.
And don't try to bring in the defensive halal haram terminology to save yourself here. It has got nothing to do with it.
The fact of the matter is this is NOT the right way to buy a car, let alone a BMW. Showroom isi liyey banayey jaatey hein keh wahan ja kar research ki jai aur koi question hon to poochey jayey. Showroom waley paisey nahin letey apkey research questions ka jawab deney key liyey.
Still good luck with everything.