GM Alpha Vehicle Platform
The General Motors Alpha platform is a vehicle architecture designed to underpin compact and mid-size vehicles with a longitudinal front-engine, rear-drive configuration. The platform was engineered with a focus for world-class driving dynamics and light weight, and can be adapted to underpin luxury and non-luxury vehicles alike.
Alpha made its debut with the 2013 Cadillac ATS sedan, followed by the 2014 Cadillac CTS sedan. The sixth-generation 2016 Chevrolet Camaro is the third and final vehicle to utilize the Alpha architecture.
Alpha was designed to support compact and mid-size vehicles with a focus on being lightweight and providing exceptional driving dynamics.
Notable components of the platform include:
- Front-engined, longitudinally-mounted layout
- A four wheel independent suspension system with a McPherson Strut in the front and a 5-link independent setup in the rear
- Rear- and all-wheel-drive applications
- Flexible wheelbase configurations
- Extensive use of high-strength steels
|Type:||Unibody Welded Steel|
|Vehicle size:||Compact, Midsize|
|Supported Vehicle Type:||Passenger Cars, Sports Cars|
|Layout:||Front-engine, RWD & AWD|
|Predecessor:||None for compact cars, Sigma for midsize cars|
The Alpha platform is capable of supporting a wide range of General Motors engines, including naturally-aspirated and force-inducted variants of four-, six-, and eight-cylinder engines. Vehicles riding on the Alpha architecture currently use the following engines:
- 2013 – present Cadillac ATS Sedan
- 2015 – present Cadillac ATS Coupe
- 2014 – present Cadillac CTS
- 2016 Chevrolet Camaro and newer
- Possible Cadillac ATS Convertible — not produced
- Possible Cadillac ATS Wagon — not produced
- Cadillac CTS variants, including
- Possible compact Cadillac crossover — Cadillac XT4 — moved to E2 platform
- Midsize Cadillac crossover — Cadillac XT5 — moved to C1 platform
- Upcoming sub-compact Cadillac sedan — moved to D2 platform
- 2017 Buick Grand National/GNX — canceled
The Alpha platform is expected to be succeeded by Alpha 2, an updated variant of the first iteration of Alpha.
Alpha 2 is expected to underpin the following vehicles:
- GM Alpha 2 Vehicle Platform