The ATS-V lineup goes on sale this spring at Cadillac dealerships.
Torque is now pegged at 444 pound-feet.
When the ATS-V debuted last fall at the 2014 Los Angeles Auto Show, the automaker said the twin-turbocharged 3.6-liter V6 engine in the ATS-V would generate 455 hp and 445 lb-ft of torque.
With the latest update, GM also revised the ATS-V’s performance numbers.
Zero to 60 mph performance is now pegged at 3.8 seconds and top speed is rated at 189 mph.
The ATS-V can be equipped with either a six-speed manual transmission or an eight-speed automatic.
The key competitor to the ATS-V is the BMW M4.
Edmunds says: The original estimate was conservative, something that should please luxury car shoppers who put high performance at the top of their shopping lists.