RST Racing News
GTM Evolution: Stock platform limit analysis at Silesia Ring

Where does “OEM” end?
The track incident wasn’t a matter of chance; it was the result of massive power colliding with mechanical limitations that we are now determined to eliminate. Data logging and vehicle telemetry analysis allowed us to precisely diagnose the weak points in the synergy between man and machine:
-
Traction Management: 500 HP is immense potential that becomes extremely temperamental on narrow, cold tires. This combination showed us how razor-thin the margin for error is when tire thermals cannot keep up with the driving dynamics.
-
Geometry Stability: The stock suspension revealed its unpredictability under high lateral loads. Extremely limited alignment adjustability makes that excess power nearly impossible to manage effectively.
-
Torque Delivery: Even minor inconsistencies in the engine and gearbox “Torque Management” lead to unexpected and hard-to-control power surges.
-
Hydraulic Handbrake: The lack of a manual override system prevents that extra layer of chassis control during a slide.
Engineering Overhaul: An Uncompromising Approach to the Mustang GT
The incident at Silesia Ring doesn’t change our plans-it radically justifies them. Instead of theorizing about the need for upgrades, we now have hard evidence from the track. We are returning to the workshop to implement solutions that will redefine the car’s handling:
-
Handling Precision: We are implementing fully adjustable control arms paired with Öhlins dampers. Through our proprietary suspension modifications, we will eliminate axle deflection and give the driver a surgical tool for total line control by enabling a full geometry setup.
-
Maximizing Mechanical Grip: The Mustang will receive what its racing version deserves-R-compound semi-slick tires, which will permanently redefine our Mustang’s concept of grip.
-
Bespoke ECU & TCU Mapping: Tailor-made tuning will allow us to synchronize the machine’s performance perfectly with the driver’s expectations.
-
Hydraulic Handbrake: Installation of a “hydro” setup to allow for full manual control in critical situations.
-
Safety and Rigidity: A full roll cage will improve occupant safety while significantly increasing torsional chassis stiffness.
![]()
Results Over Excuses
Restomotive is a team dedicated to stress-testing its projects in the most demanding environments to draw constructive technical conclusions. We value the feedback from the racing community-alongside our own data, these insights form the foundation for the return of the Mustang GTM.
The crash at Silesia Ring is merely the backdrop for the birth of a machine that will soon set new standards for stability. Back to the workshop.