Power is provided by a twin-turbo 3.0 litre V6 engine belting out 340kW and 603Nm, comfortably shading the 317kW/550Nm numbers of BMW’s midsized M cars - although both are outclassed by the new C 63’s 350kW/650Nm turbo V8.
Cadillac promises a 0-60mph (96km/h) time of 3.9 seconds, which likely equates to a 4.1 second run to 100km/h - matching the M twins’ time.
Both ATS-V specials are equipped with a six-speed manual and Active Rev Match with ‘no-lift shifting’ as standard, with a paddle-shifted eight-speed sports auto available as an option.
Rear-wheel-drive is the order of the day, and both of the hot Caddies boast a 25 percent boost in torsional rigidity over the regular ATS models.
Other tricks include an electronic limited-slip differential, big Brembo brakes, the latest generation Magnetic Ride Control suspension and Performance Traction Management with five different selectable driving modes.
Cadillac remains off the cards for Australia, at least officially, although recently confirmed plans for a right-hand-drive launch into the UK could see GM’s premium brand move that much closer to an Australian berth.