This was a great car, fast with really good sound from the v8
I had this car for around 5 years. A white X6 50M sport, which was a 4.4 litre bi-turbo with loads of power and loads of fun.
High driving position, but with the comfort of any other luxury car. This was a 5 seater as I paid for extra seats. Good boot space all around. Leg and head room was good. Quite a big car for London driving, but no issues parking. Cameras all around the car. Electric everything. Heated steering wheel was amazing.
V8 engine was great. 4.4 bi-turbo was sharp and responsive. Very nice rumble from the V8 engine.
As always, I had the service pack, so no issues with costs. Petrol was pretty expensive as it was a V8, so you should only buy if that is not a problem. Tires are run flats was a bit of a problem sourcing them from what I hear. Never needed to change them though in the years I had the car.
BMW individual sound system was amazing. Subs built under each seat. 360 camera. Fully loaded with all the toys that you could expect.
Definitely recommend this car, especially the new one out. This was my second one, and I only because I switched to I8s that I didn't buy another.