11. Oldsmobile Achieva SCX
The Oldsmobile Achieva SCX, produced between 1992 and 1993, was a performance-oriented variant of the standard Achieva coupe. (en.wikipedia.org) It was equipped with the W41 version of Oldsmobile’s Quad 4 engine, delivering 190 horsepower and 160 lb-ft of torque, making it the highest-output naturally aspirated four-cylinder engine GM had produced at the time. (en.wikipedia.org) This engine featured different camshafts, a low-restriction exhaust system with dual mufflers, and a special engine computer calibration that raised the redline to 7,200 rpm. (en.wikipedia.org) The SCX also featured a unique version of the Getrag-licensed, GM-Muncie built Getrag 282 five-speed transmission with special second and fifth gears, as well as a different final drive ratio for quicker acceleration and better gearing to keep the engine in its power band. (en.wikipedia.org) To enhance handling, the SCX was equipped with a unique suspension setup, including a larger diameter front sway bar, a wider rear axle with dual rear sway bars, and “Computer Command Ride” (CCR) electronically adjustable struts and shock absorbers. (en.wikipedia.org) Production was limited, with only 1,146 units built in 1992 and 500 in 1993, making it a rare and sought-after model among enthusiasts. (en.wikipedia.org)