The RUF CTR "Yellowbird" put German maker on the map as a force to be reckoned with, taking Porsche 911 "bodies in white" and rebuilding them into some of the most powerful cars available. The CTR2 continued that legacy, using the 993-generation 911 Turbo and transforming it into a street-legal 702-horsepower monster with titanium connecting rods, in this case built specifically for the Pikes Peak hill climb. A massive dual-element rear wing provides downforce while also directing air to the intercoolers, and the suspension is a bespoke affair created by Ohlins for the CTR2. A six-speed gearbox built by RUF to handle the astronomical power has short ratios to maximize acceleration and the car has documentation of races and maintenance over its entire two-owner history. Possibly the ultimate iteration of the 993 air-cooled platform, this is a must-see for Porscheophiles.