I got to say I've heard authentic similar reports in person about Big Motoring World Group, selling Second hand used BMWs, for sale in Kent, BMW 1 Series, 3 Series, 5 Series, 6 Series, 7 Series, X3 M3 Z3 Z4"
Basically on serious note if you do go to them, make sure the car is still in BMW warranty (check with BMW direct) otherwise walk away.
It is like the phantom zone, after sales vanishes when you move off the forecourt. In fact it moves faster then the depriciation on the car
F30 335i M Sport