The Oldsmobile Achieva is a front-wheel drive compact sedan and coupe that was introduced by Oldsmobile for the 1992 model year. 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 replaced the GM N-body Cutlass Calais after its final 1991 model year, and ended production after the 1998 model year. Overview 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. It was offered in four different trim levels during its production run: S, SC, SL, and SCX. Available engines included different versions of the Oldsmobile-developed 2.3 L Quad 4 engine: the base single-cam L40 "Quad OHC", the DOHC LD2, the high-output LG0, and the special "W41" variant of the LG0 Quad 4 used in the SCX model. All were replaced for 1996 by a revised 2.4 L version. A pair of V6 engines were also offered including the Buick-sourced 90° 3.3 L "3300" V6, which was later replaced by Chevrolet's 60° 3.1 L "3100" V6. While a 5-speed manual transaxle was initially offered as the standard base transmission, most Achieva models were sold with 3-speed or 4-speed automatic transaxles. 1998 was the final model year for the Achieva, after which it was replaced in the Oldsmobile lineup by the Alero for the 1999 model year. Initial production 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 Achieva started regular production for the 1992 model year. It was offered in four different trim levels: S and SL, available on both coupes and sedans, and the sporty SC and SCX coupes. The base S offered a 2.3 L "Quad OHC" 4-cylinder, while the SL had the DOHC Quad 4 engine standard that was optional on the S model. A 3.3 L V6 engine was optional for the SL. The SC coupe had a standard high-output Quad 4 with 5-speed manual transmission or a 3 speed automatic, with the 3.3 L V6 being an option. SCX The W41 coupe was introduced by Oldsmobile in 1991 on the Cutlass Calais and offered through 1993 on the Achieva. The Achieva SCX replaced the previous