Both cars are good enough and have their own forte. Both cars come in different segments too. If we talk about BMW 5 Series, it is a well appointed executive sedan that is fully loaded for the luxury car buyer as well as the enthusiast. We loved the balance between driving pleasure and luxury that the 520d brought to the table and the 530d does build on that feeling quite a bit. The M Sport trim adds just a bit to the luxury quotient with better seats up front and twin infotainment screens at the rear. If you were happy sitting in the three passenger seats of the 520d (front and rear) you’d be a little happier in the 530d, though they are nowhere near as plush as rear seats in the Mercedes-Benz E350, for example. On the other hand, BMW X4 has attractive unique design and positioning. It has most of the elements that we have liked across various BMW cars in the past couple of years. It has the gesture controls and the display key like the 7 Series, a flamboyant cabin like the 5 Series, reclining rear seats like the GTs, an exemplary performance and the superb driving dynamics that its sibling X3 have. But, it is not that comfortable as compared to 5 series. So, if you often tackles bad road conditions and you’re looking to turn heads, the X4 is the SUV for you. Do take a test drive before the final call. Check out authorised dealership details. You may compare both the cars according to their variants too.