We recently picked up a 2013 528i Xdrive with M-sports package. We were considering many options from a coupe to a SUV, but we started our car shopping with a 528i Xdrive and all the cars that was driven after the 5series was very difficult to satisfy us.
I drive a 2011 Audi A4 2.0T Quattro daily and so we decided to test drive the supercharged A6, A7 and the new 3.0 TDI on A6. The A6 interior feels somewhat cheap compared to the 5series and the whole cabin seemed too cluster for some reason. The engines are powerful on both supercharged and TDI engines. But the 5series was so much comfortable and was relaxing to drive. Then we drove the Q5.
Moved to Mercedes across from the Audi, test drove ML350 Bluetec and the GLK 350. I've driven Q7 TDI and X5 35d before and the ML350 Bluetec felt shockingly slow compared to the Audi and BMW. Automatic parking feature on both Merc was cool however.
We had to go with the 5 series. The new 4 cylinder is efficient and all the packages we wanted was available at the dealership. So far very happy with the car
