Chances are if you're looking at this ad, you already know a fair bit about the 991.1 GTS. What will keep you reading longer than other examples is the length of this one's specification list. It is undoubtedly one of the most extensively optioned examples produced with more than £30,000 spent on top of the base price. The 991.1 GTS is particularly significant though as it marked the end of an era many still mourn - the last naturally aspirated 911 Carrera models. Experiencing this 3.8-litre, Powerkit-equipped powerplant today is a joyful reminder of just how good we had it back in 2015. Its sonorous induction note hardens under load at around 3000 rpm, before evolving into a spine-tingling crescendo in the upper reaches of the rev range. You feel every single one of its 430 bhp building as it howls around the tachometer. Delivered new on the 3rd March 2015 via the Porsche Retail Group in Reading. One could reasonably assume it was in fact ordered by Porsche GB itself, given the carefree approach to the order form. Available now from a large private collection, showing just 28,495 miles from new, this is one of the very best examples you will find. Original paint is evident on every panel and the front end of the car benefits from PPF to ensure this remarkably well-preserved example stays that way. Close inspection of the door shuts, frunk and engine compartment further support its originality. Externally Agate Grey is a well-loved colour for many Porsche models and suits the GTS brief perfectly, especially paired with the Garnet Red two-tone full leather interior option. This rarely seen interior is deeper in colour than photography suggests and brings life to the often monochrome expanses of a 911 interior. Extended leather abounds and pleases those who look more closely; seat backs, air vent slats, climate control panel, PCM panel, fuse box covers it goes on. Every service has been completed by Porsche, with all but one at Porsche Centre Brooklands, always a hallmark of a well-looked-after car. Furthermore, the car offers its next keeper total peace of mind coming with a Porsche Extended Warranty until Feb 27. Notably, the current owner of this car has elected to have the wheels refinished in metallic silver, a subtle yet classy addition. An outstanding 911 in every regard and a compelling candidate for continued gentle appreciation, it is available now in Battersea, Central London. Any inspection is welcome by prior appointment.