Actually not that many GT3RS ended up in speculators' hands. Most are now being driven by real car people.
The few that pops up being flipped are mostly from greedy USA dealers, they saw the gold mine and $$ flashes in front of them.
Quite few dealers were stuck ordering a 918 as 'stock' vehicle for the owners, while those ended up paying them back handsomely, the buying a of a 918 entitled those US dealer principals first dibs to great cars, and those owners have no intention of keeping any, they just see the perfect flip vehicles.
The greedy dealers is and will always be the bad guy, not the 918 buyers.
Will the R ended up as a great flip vehicle? Most certainly, unless of course Porsche adjust the initial pricing first. Priced in the secondary amount and that will weed out the flippers. Yes that will make it more unaffordable for those that truly wants such a car, but they face the same obstacle on the other side of the coin where they have to buy from greedy dealers who tacks on unreal 'market adjustments'.
The R, is a pure parts bin exercise, take off the rear wing of a GT3, swap in a manual transmission, slap on RS's roof and hood, add some mascara and voila, done. They can't make too many due to a number of reasons, not enough GT3 engines, the specialized RS parts which are in limited production, and the high emission from the manual transmission will skew their overall average if they make too many.
No matter how loud the manual guys shout, they are still a very tiny minority, they cannot buy enough manual cars to justify Porsche making more, just be glad they are still doing it with the GT4, the Spyder, the R and perhaps some future cars.
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