As predicted, the plug-in hybrid version of the 2016 Cadillac CT6 large luxury sedan was released today at the Shanghai Motor Show, using an adaptation of GM’s second-generation Voltec hybrid system.
What wasn’t predicted was the startling size of its battery pack: 18.4 kilowatt-hours, identical to that used in the 2016 Chevrolet Volt.
That means Cadillac is fitting a battery that’s essentially double the size of any other plug-in hybrid on the market today–and should probably achieve 30 or more miles of electric range with it.
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Unlike the Volt, however, the CT6 plug-in hybrid will switch on its engine under higher loads, according to the GM press release.
That engine is a turbocharged 2.0-liter four-cylinder with direct injection, presumably a variation on the same engine in the non-hybrid four-cylinder CT6 announced at the New York Auto Show three