The Porsche 911 R was another very interesting case of a car that shot up in value in 2017. This car had all the makings of a future collectible; a limited run of 991 units, a manual transmission, a naturally aspirated engine, and an old school driving experience. 911 R prices hit $1 million at one point, which is insane for a car with a $185,000 MSRP. Fortunately, Porsche wasn't happy that people were trying to flip the 911 R, and decided to release the GT3 Touring
Package, which is extremely similar to the 911 R. Prices are still well over double the original price, but we think that Porsche's handling of the situation was much better than Ford's decision to sue its customers.