The 911 RSR isn't your average Porsche ... Under the hood of this sunshine-yellow Porsche lies a 3.0-liter flat-six engine that pumps out a respectable 315 horsepower. Back in the 1970s, that ...

Select a vehicle year and model below to get a valuation. With a new Porsche 911 on the horizon in 1999, the 1998 version of the fabled sports car spends its final year based on 993 architecture. The ...