Sir,
You are right; Murtaza Shahid Sb is too...
I was talking figuratively not literally... 
What I meant actually is that all these are just honey traps ...
No matter what model you opt for... the end beneficiary is always the bank....
The end customers are just lured into thinking that they have gotten a really good deal.
Viz a Viz if you calculate and compare plans across all banks... the overall profit (The total amount that the end user will be paying for any particular car that the bank earns is round about the same) ...
It's actually more in case of Islamic banking ... be is Musharak, Mudaraba or whatever..
The only benefit that the end user gets in certain cases is the low initial down payment ... but when they go through the plan tenure ... the banks recover all that and even more....