- Two-mode hybrid: Allison bus (upcoming: Tahoe/Yukon, Escalade, Silverado/Sierra)
- Light hybrids: Chevy Silverado/GMC Sierra
- Hybrid: Saturn Vue, (upcoming: Saturn Aura, Chevy Malibu)
- Upcoming plug-in hybrid: Saturn Vue
The upcoming Tahoe and Escalade group is also posing a challenge to GM, Savagian said. Engineers are working to put electric motors into these large truck and SUV vehicles, but they feel they cannot "sacrifice what this segment represents," he said. The challenge – achieved – was to put all of the hybrid components into a space the size of the transmission. Engineers came up with a two-electric motor system that will be on display at NAIAS in January. This system can move the vehicle on electric power alone at low speeds, and will not reduce performance when the engine is fully engaged.