If you didn’t catch it in time in the video above, today Chevrolet announced the Camaro GT4.R. So what does that mean exactly? The GT4.R is the next in Chevrolet’s efforts at peddling a globally sold GT4 car that will compete in the Pirelli World Challenge and IMSA’s Continental Tire SportsCar Challenge.
In case you were unaware, Chevrolet Racing has been fielding the fifth-gen Camaro GS and Z/28.R in the GTS class in the Pirelli World Challenge and GS category in IMSA since 2010 and have been pretty successful with it. The program came to a close in 2016 and we’ve been waiting for its replacement to surface, and now we are finally catching a glimpse of it. And unfortunately, that is about all we have.
Chevrolet has released a rendering and a short video showing the car blowing by at speeds too high to get a good look at the car. We expect it will make its full fledged debut at one of the first races of the season.
Naturally the car was developed in conjunction with Pratt & Miller, who you may remember from every Corvette racecar since the C5.R, as well as the CTS-V.R and ATS-V.R. The Camaro GT4.R is based on the ZL1’s Alpha architecture chassis, though it has obviously been tweaked to meet GT4 homologation standards.
Powering the new car is a race-tuned, dry-sump, 6.2-liter LT1 V8. Though we don’t know the full specs on the engine yet, if any of Chevrolet’s other racing programs are any indication, the engine will virtually be a production spec LT1 with some minor modifications for racing—which is in and of itself a testament to the durability seen in the LS and now LT engine platforms.
Backing the Gen V mill is a Xtrac sequential transmission with pneumatic powered paddle shift and adjustable traction control. Xtrac also provides a race-spec limited-slip differential. The ZL1’s magnetorheological dampers have been ditched in favor of Ohlins Racing coilovers. Braking is provided by six-piston aluminum monobloc Brembo calipers biting on carbon ceramic discs that are controlled by a fully adjustable ABS system.
All this rolls on a set of bitchin’ Forgeline GS1Rs, 18x10s up front with 18x11s out back.
Aerodynamic bits including a new rear wing, front splitter and front dive planes have been added to the car in an effort to substantially increase downforce. However, one of the things we find most interesting about the car is that the rear wing looks eerily similar to the wing we’ve seen on the Corvette ZR1 test mule. Could this mean that the ZR1 will be a more track focused variant than we’ve ever seen before?
Either way, the GT4.R looks to be a potent and capable performer. If it is anything like the previous generation Camaro GS and Z/28.R, we’re sure that Chevrolet has a winner on its hands. Chevrolet Racing said that lessons they learned from the previous generation have been applied to the car in spades—impressive considering the fact that between the GS and Z/28.R they won 55 races over the past six years.