[2] The Achieva was based on the GM N-body platform, which it also shared with its siblings the Pontiac Grand Am and Buick Skylark.
The Achieva is a compact car produced by the General Motors' Oldsmobile division from 1991 until 1998 and was available as a sedan or coupe.
The Achieva was first seen as a concept car at the 1991 Chicago Auto Show, positioned to replace Oldsmobile's compact Calais models.
The Calais and Achieva share the same front wheel drive N-body architecture including identical wheelbase.
The SC coupe had a standard 180 hp (130 kW) high-output Quad 4 with 5-speed manual transmission or a 3 speed automatic, with the 3.3 L V6 being an option.
The SCX is a higher-performance version of the SC (sports coupe) and as such utilized the SC's deeper front bumper cover with standard fog lamps, lower body side cladding, rear bumper cover with dual exhaust tip cut-outs, as well as a unique W41-specific silver colored stripe around the lower body moldings, "W41" decals on the front fenders, and "Achieva SCX" decals at the leading edges of the doors.
This included the move to smaller diameter yet wider V-rated P215/60VR14 BF Goodrich Comp T/A tires on 14x6.5 inch cast aluminum wheels (compared to the SC's 205/55R16 on 16x6 inch wheels) and different suspension components on the SCX-specific FX3 RPO coded suspension.
The suspension changes included larger diameter direct-acting front sway bar over the base Achieva, a wider rear axle with dual rear sway bars, "Computer Command Ride" (CCR) electronically adjustable struts and shock absorbers, as well as higher spring rates and bushing changes.
Compared to the SC's standard high-output, 180 hp (134 kW) LGO Quad 4, the W41 version of the LGO Quad 4 was fitted with different camshafts, a low restriction exhaust system with dual mufflers and a special engine computer calibration for the ignition and fuel systems that also raised the engine's redline to 7200 rpm.
The SCX offered 185 horsepower (138 kW) for its final year, primarily due to exhaust port changes to the cylinder head.
[citation needed] 4-Door Sedan (1992–1998): 2-Door Coupe (1992–1997): The Achieva won the touring car championship of the SCCA World Challenge from 1992 to 1994.