Yes there are some motability flaws, and yes they could operate better, they could simplify the process by just laying down some ground rules to manufactures (for example breaking deals were they say right this is the maximum we will pay for a car including discounts, its up to you guys if you let a customer take xxxx car/van/suv for that price) it would also give us some fun trying to haggle :P.
But the big point here though if it was like this I would not have even thought to go for my tiguan R line, which I have had since april, which in my eyes at current AP quite a steal with its AP, car is great for me and family, good MPG, excellent comfort and the tech extras as std, well let me just say the std kit in the r line tech would cost another 5000-8000 on top of AP at BMW, Merc ect.
Best car on the scheme imho.