BMW M4 GT3

TYRES

• Compound: Dry (Medium) — F 27.5 PSI / R 27.3 PSI cold
• Tyre blanket temp: 80°C (front & rear)
• Optimal operating window: 85–100°C for peak grip; race stint target 90°C to manage degradation over stint length while retaining aggressive turn-in bite.

ELECTRONICS

• TC1: 4 (allows aggressive throttle application through Vale/Farm traction zones without excessive slip heat)
• TC2: 3
• ABS: 4
• Engine Braking / Brake Magic: Medium-High (setting 6/10) — supports late-braking stability into Stowe and Village
• Brake Bias: 54.5% front (adjustable in-cockpit 53.5–56% depending on fuel load; move rearward as fuel burns)

SUSPENSION

• // FRONT
• Ride Height: 55 mm
• Wheel Rate FL / FR: 145000 N/m / 145000 N/m
• ARB: 145 N/m (medium — preserve front mechanical grip through Maggotts-Becketts)
• Brake Torque Multiplier: 100%
• Brake Bias: 54.5%
• // REAR
• Ride Height: 60 mm
• Wheel Rate RL / RR: 130000 N/m / 130000 N/m
• ARB: 120 N/m
• Diff Preload: 60 Nm
• Diff Coast: 0.45
• Diff Power: 0.60

DAMPERS

AERO

• Front Splitter: 4 clicks (from min)
• Rear Wing: 6 (of 10) — balanced for Hangar Straight top speed vs Maggotts-Becketts stability
• Downforce Level: Medium-High
• Brake Ducts: Front 4 / Rear 3 (manage brake temp for Stowe/Village heavy braking zones without overheating tyres)

KEY SETUP NOTE

• The Maggotts-Becketts complex is the true setup differentiator — running slightly stiffer front ARB with medium-soft rear allows the M4 to rotate aggressively on entry to Maggotts while staying planted through Becketts' direction change; sacrifice a touch of Copse flat-out confidence for a setup that survives the S-complex loaded through a full race stint as rear tyres degrade.

TRACK GUIDE

• Village/Loop complex (T3/4) is where aggressive drivers gain the most — trail brake deep into Village, use the M4's strong front-end bite to rotate early, sacrifice a fraction of mid-corner speed for a straighter exit onto the Loop.
• Maggotts-Becketts-Chapel must be treated as one continuous input — never lift fully, use small steering corrections; the car's aero stability here defines confidence for the entire lap.
• Traction out of Farm, Vale, and Luffield is critical — get on power progressively but early since these feed into straights; TC4 setting allows ear