Glass Roof / Cream Premium / 19" Grey Slipstream / Carbon Fibre / Light Headliner / Midnight Silver / Enhanced Autopilot
Nice combination - as Peteski said, personally I wouldn't pay the £1,400 for the grey wheels (was £2,400 until last week or the week before) as in reality you could get them done whatever colour you want for £400 max (£65-£75 per wheel around me) and they do a great job.
I saw the cream premium in a P100D when I test drove my 75D last week and it does look rather nice. I just couldn't do it myself as know the kids will ruin it like they did the RRS cream leather although the premium seats are not leather and made to be hard wearing. The Carbon Fibre really sets it off which would have been a selection I did but went for a new inventory model instead but can live without that as it has everything else I wanted.
Definitely use a referral code to get your free supercharging. Even if you don't use it for now it may come in useful in the future for you and they are forever expanding the supercharger locations.
Everyone has their choice options and for me the sub zero wasn't on the high priority list. The front seats are heated anyway (sub zero adds the rear seats, steering wheel, washers and wiper rests) and I have read that its beneficial to charge the car which warms up the batteries before you leave which will help with range. Also can set the heating before you head off so its nice and warm in the winter months so perhaps not needed. The HEPA system is good for anyone with asthma or other conditions or that drive a lot in congested places. Would be nice to have them split out so each could be selected but hey ho we are where we are
Naturally depending on the audio enhancements and what you want then this might be a requirement. I found that the standard system was more than good enough for me as was a vast improvement from my current car.
I have found that if you search new inventory you get certain results but most S's (not all) are standard suspension etc. and I struggled to find what I wanted but when using my iPhone (not sure on Android) and doing a custom order and then scrolling at the bottom it says New vehicles available which when selected showed me some cars I didn't see on the new inventory. Changing various options and colours etc. would then show other cars as well so a bit of hit and miss but worth checking with your local Tesla to see what they have on their internal database.