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Cadillac launches new V-6 family; 3.0L Twin Turbo w/ cylinder deactivation and stop/start for CT6

Green Car Congress

is up to 4 dB quieter than the Infiniti 3.7L Twin Turbo’s estimated 400 horsepower and 133 hp per liter is 27% greater than the BMW 740 Li’s 3.0L turbocharged I-6 (315 hp and 105 hp/L) and 29% more than the Audi A7’s 3.0L supercharged V-6 (310 hp and 103 hp/L). Twin Turbo is up to 5 dB quieter than the Audi 3.0L TFSI engine, while the 3.6L

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