We lead off today with two big luxury car stories. The Cadillac CT6 plug-in hybrid debuts at the 2015 Shanghai Auto Show, while the next BMW 7 Series will adopt carbon-fiber technology from the i3 electric car. We're also giving you a peek at the 2016 Chevrolet Volt order guide. All this and more on Green Car Reports.

Catch up on last week's biggest stories with our Week in Reverse feature and video.

See how E85 ethanol boosts the horsepower of a modified 2015 Dodge Challenger SRT Hellcat.

General Motors releases the 2016 Chevrolet Volt order guide, revealing options and trim levels... but no prices.

The next BMW 7 Series will feature a Carbon Core structure based on technology from the i3 electric car. Will that help this full-size luxury sedan trim some weight?

The long-rumored Cadillac CT6 plug-in hybrid variant debuts at the 2015 Shanghai Auto Show.

Read the story of how Google almost bought Tesla for $11 billion in 2013.

Chinese carsharing service Kandi plans to sell the electric cars it currently dispenses from vending-machine like towers.

Certain 2005 through 2008 MINI Cooper models are being recalled to address an airbag flaw.

Finally, the 2016 Lexus ES 300h debuts in Shanghai with updated styling and the same hybrid powertrain as before.

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