Hi mate I have 2016 f sport the same colour as yours and I polish it once a week with Williams Waterless. Absolutely love the stuff. My car gleams like new and its relatively effortless, you an use it on the windows and interior surfaces also. I might add that I am as zealous as you over caring for my vehicle and cannot stand seeing even a bit of grit on the mats lol. I've used the product on all the family vehicles and can't recommend it highly enough. My days of water and a chamois leather are firmly behind me. Several work colleagues having seen the results have become converts too. Re the doubters who fear any grit present on the paint surface might scratch the paint I can assure you this is very much not the case as it is magically lifted and removed by the microfibre cloth. You will not see a single 'swirl' on my paintwork. My kids laugh every birthday and xmas when they ask me what I want and I always ask them to get me some Williams. Its relatively cheap, around £20 for four litres with five cloths on E bay or Amazon. I know I sound like an advert for the shopping channel mate but honestly its as good as the reviews say it is. Beads beautifully when it rains. Try it you wont be sorry.