Aston Martin Vantage GT4 Unveils Innovative Gearbox Solution

80% of Vantage GT4’s Parts Mirror Those of Road-Going Vehicle

Following closely behind the recently updated Aston Martin Vantage and its GT3 racing counterpart, the renowned English car manufacturer has introduced the latest addition to their lineup: the cutting-edge Vantage GT4. This junior race car has been meticulously designed and crafted by the expert team at Aston Martin Racing.

Due to the stringent guidelines set by the GT4 racing category, the Vantage GT4 bears striking resemblance to its on-road counterpart as it incorporates about 80% of the mechanical and structural components found in the production car. The bonded aluminum chassis is equipped with a specialized roll cage, however, most of its framework remains intact.

Although the mounting points for the inboard suspension remain the same, modifications have been made to the suspension linkages to ensure that the mandated 18-inch forged aluminum wheels and tires have the correct camber range. These wheels and tires are smaller than the 21-inch ones found on the recently unveiled road version of the Vantage.

The KW dampers, which are easily adjustable in two directions, offer exceptional performance when it comes to driving dynamics and maneuverability. The braking mechanism consists of top-of-the-line Alcon six-piston calipers for the front wheels and four-piston calipers for the rear, with an option for the driver to adjust the brake bias for the front and rear independently.

The 4.0-liter twin-turbo V8 engine, borrowed from AMG, is derived from the same powertrain as the one used in the Vantage road car. AMR has revamped the electronic control system and replaced it with a Bosch Motorsport ECU, which is now controlled by AMG software. The automatic transmission has also been upgraded to use ZF/AMR Motorsport software for improved performance. The software has a clever feature that transforms the eight-speed automatic into a six-speed paddle shift gearbox, with lockouts for the auto mode and gears seven and eight.

The GT4 is a nimble racing vehicle that lacks the sheer power of its road-based counterpart. While the Vantage GT4 boasts an impressive output of 469 horsepower and 472 lb-ft of torque, it pales in comparison to the production version’s capabilities. With a robust 656 hp and 590 lb-ft of torque at its disposal, the standard Vantage reigns supreme.

The appearance of the Vantage GT4 is truly striking. Nevertheless, it is worth mentioning that the majority of its body panels are original stock pieces. AMR has constructed a specialized hood utilizing a unique natural composite material made from flax fibers. This innovative design allows for increased air outlet space. In compliance with racing guidelines, the vehicle includes aerodynamic enhancements, such as an upgraded rear wing and a more extensive front splitter.

Aston Martin reports that the development of their new GT4 racer has resulted in an enhancement of downforce, as well as a decrease in drag. In anticipation of rigorous track usage, the AMR team has ensured that sufficient measures have been taken for engine and brake cooling. The cooling system for the brakes has been notably upgraded, and the expanded front grille allows for improved air circulation to cool the engine.

Within the vehicle, you will find a protective chair equipped with a six-point restraint, cooling amenities, and a fire-dousing mechanism. Additional choices encompass a back-up camera and a driver’s refreshment dispenser, activated by power.

The Vantage GT4 marked its initial competition at the IMSA Michelin Pilot Challenge during the Rolex 24 Hours at Daytona race. The manufacturing process is currently in progress, with a number of models already delivered to customers. AMG plans to produce an extra 40 units during the 2024 racing season.

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