General Motors is currently hard at work developing its next-generation vehicle architectures, with the goal of flexibility, light weight, and reduced complexity. The most notable of these include the likes of the G2XX (Gamma replacement), D2XX (Delta replacement), E2XX (Epsilon replacement), and Omega. Importantly, the D2 and E2 architectures will underpin the next-generation of GM’s core vehicle portfolio while absorbing current free-standing architectures, including the Theta and Lambda, respectively. The move from Theta to D2 will also result in a slight reduction in the size of the next-generation Chevy Equinox and GMC Terrain.
|DELTA||CURRENT CRUZE, ASTRA/VERANO/EXCELLE XT & GT, ORLANDO, ZAFIRA, VOLT/AMPERA|
|THETA||CURRENT CAPTIVA, CAPTIVA SPORT/ANTARA, EQUINOX, TERRAIN|
|OPEL ASTRA/BUICK VERANO/EXCELLE XT & GT|
|OPEL COMPACT CUV (ANTARA)|
|BUICK COMPACT CUV (ENVISION)|
Moving the popular Equinox and Terrain crossovers from Theta to D2 will result in a smaller exterior footprint, thereby making the vehicles truly compact in size — compared to the current models’ “between compact and midsize” positioning. Doing so will allow the next-gen models to go head-to-head with market sales leaders such as the Ford Escape, Toyota RAV4, and Honda CR-V, among others. The repositioning will coincide with a similar reduction in size of the next-generation Chevrolet Traverse, GMC Acadia, and Buick Enclave as they migrate to the E2XX platform and become “true” midsize CUVs, with possible extended-length full-size variants.
More importantly, the unification of the Delta and Theta platforms into D2XX will finally unify the North American-market Chevrolet Equinox and international-market Chevrolet Captiva into a single global vehicle. Both are currently based on variants of the Theta architecture. Whether the unification will result in a common global nameplate, however, is unknown at this point.