As expected of the replacement for the ATS-V, the CT4-V Blackwing is hiding a twin-turbo V6 under the hood. Codenamed LF4 by General Motors, the 3.6-liter engine with manifold-integrated charge cooling should develop at least 464 horsepower and 445 pound-feet (603 Nm) of torque.
Level up to the CT5-V Blackwing, and the successor of the CTS-V is rocking a small-block motor with a thumpin’ great blower for good measure. The LT4, which is shared with the seventh-generation Corvette Z06 and Camaro ZL1, is expected with at least 640 ponies and 630 pound-feet (854 Nm).
To be revealed via livestream on Cadillac’s website, the two models will be teased on January 30th during the Rolex 24 at Daytona. Described as “ultra-high-performance sedans that combine on-track excitement with next-level craftsmanship,” the Blackwing twins can be specified with super-sticky rubber wrapped around forged magnesium alloy wheels at an additional charge.
Inspired by the championship-winning DPi-V.R racing car, these wheels are made from magnesium for two very good reasons. First things first, it has the highest strength-to-weight ratio of all commonly available metals. And secondly, magnesium is a very good material in terms of heat dissipation.
On a less positive note, the twin-turbo V8 that introduced the Blackwing name to Cadillac’s nomenclature isn’t coming back because General Motors doesn’t plan to roll out any other model on the Omega platform. To this day, the CT6 full-size sedan remains the only Omega-based vehicle from the Detroit-based automaker. At the present moment, the CT6 is exclusively produced in China at the SAIC-GM assembly plant in Jinqiao.