2016 Cadillac CT6
The second-generation Chevrolet Volt is important not only as a high-volume plug-in hybrid, but also because components from its Voltec powertrain are designed to be used in other GM models.
Last year, General Motors unveiled the 2016 Chevrolet Malibu Hybrid, with a powertrain very similar to the Volt's. Around the same time, it also unveiled the Cadillac CT6 Plug-In Hybrid.
It's been assumed that this plug-in version of Cadillac's new large sedan would also borrow heavily from the Volt.
Cadillac has confirmed that it uses quite a few components from the Chevy—but with many changes dictated by its rear-wheel driveplatform and sportier bent.
Green Car Reports article here