Cadillac looks poised to continue carving out its niche in the high-performance four-door luxury sedan segment with the upcoming CT5-V, which is slated to debut alongside the smaller CT4-V on May 30th. However, one big question remains: just what will power the Cadillac CT5-V?
For those not up to speed on the newest Cadillac product, the CT5-V is the upcoming hot-to-trot version of the Cadillac CT5, which debuted just last month at the 2019 New York International Auto Show. The D-segment model will go head-to-head with heavy-hitting German rivals like the BMW M3 and Mercedes-AMG C63, and that means it’s gonna need some serious V8 firepower under the hood.
And as far as we know at the moment, there are really only two options for what will be under the hood of the Cadillac CT5-V.
The first is GM’s supercharged 6.2L V8 Small Block LT4. In the outgoing, third-generation CTS-V, the LT4 made 640 horsepower at 6,400 rpm and 630 pound-feet of torque at 3,600 rpm. It was also found in such GM performance powerhouses like the Chevrolet Corvette C7 Z06 and sixth-gen Chevrolet Camaro ZL1. The LT4 is a very capable overhead valve (OHV, otherwise known as push-rod) performance mill, to say the least.
The other engine option to slot under the Cadillac CT5-V, is the twin-turbocharged 4.2L V8 LTA, otherwise known as Blackwing. Developed specifically for Cadillac, the unit is Cadillac’s first twin-turbo V8 engine and, unlike the push-rod LT4, the LTA utilizes a more sophisticated Dual-Overhead Cam (DOHC) design. Currently, the LTA is only available in the forthcoming Cadillac CT6-V, where it will produce 550 horsepower at 5,700 rpm and 627 pound-feet of torque at 3,200 rpm.
|Engine:||GM V8 LT4||GM V8 LTA Blackwing|
|Power (hp)||640 @ 6400 rpm (CTS-V)||550 @ 5700 rpm (2019 CT6-V)|
|Torque (lb-ft)||630 @ 3600 rpm (CTS-V)||627 @ 3200 rpm (2019 CT6-V)|
|Charge Cooling||Integrated dual coolant-to-air intercoolers||Twin water-to-air intercoolers|
|Fuel System||Direct injection||Direct injection|
|Fuel Type||Premium required||Premium required|
While both engines would provide the necessary output to make the forthcoming Cadillac CT5-V a beast, each engine also comes with its own unique character and personality. For example, the LT4 is more of an old-school, bombastic performance bombshell, whereas the LTA creates a more refined tidal wave of power.
So, what do you think: will the Cadillac CT5-V use the supercharged 6.2L LT4 V8, the turbocharged 4.2L LTA V8 Blackwing, or some other engine entirely? Vote in the poll and posting in the comments section below.