BMW M4 GT3

TYRES

• Compound: Dry (GT3 Slick – Medium)
• Front Pressure: 27.3 PSI cold
• Rear Pressure: 27.1 PSI cold
• Tyre Blanket Temp: 80°C (standard GT3 blanket setting)
• Optimal Operating Window: 85–100°C for maximum grip; peak efficiency ~90°C. Race-stint target window 80–95°C to balance deg over a full stint under aggressive driving.

ELECTRONICS

• TC1: 4
• TC2: 2
• ABS: 4
• Engine Braking / Brake Magic: Medium (-2 from max engine braking map)
• Brake Bias: 54.5% front (adjustable -1.0/+1.0 in-cockpit per stint)

SUSPENSION

• // FRONT
• Ride Height: 55 mm
• Wheel Rate FL / FR: 145,000 N/m / 145,000 N/m
• ARB: 85 N/mm
• Brake Torque Multiplier: 100%
• Brake Bias: 54.5%
• // REAR
• Ride Height: 60 mm
• Wheel Rate RL / RR: 130,000 N/m / 130,000 N/m
• ARB: 60 N/mm
• Diff Preload: 50 Nm
• Diff Coast: 0.45
• Diff Power: 0.60

DAMPERS

AERO

• Front Splitter: 4 (of 6 clicks — moderate front load for Maggotts/Becketts stability)
• Rear Wing: 5 (of 8 — balanced for Hangar Straight top speed vs Copse/Maggotts load)
• Downforce Level: Medium-High
• Brake Ducts: Front 4 / Rear 3 (manage temps over race stint, avoid overheating under heavy Stowe/Village braking)

KEY SETUP NOTE

• The M4 GT3's neutral platform lets you run slightly stiffer front ARB and lower front ride height than typical for extra front bite into Village and Stowe, but the Maggotts-Becketts sequence punishes instability — keep rear ARB softer and rear ride height marginally higher to preserve rear platform stability through that flat-out S-complex, even if it costs a touch of rotation elsewhere.

TRACK GUIDE

• Copse and Maggotts/Becketts must be taken with total commitment — any mid-corner rear movement here costs multiple tenths and risks a spin at 260+ km/h; trust the aero platform and stay smooth on the wheel.
• Late braking into Stowe and Village/Loop complex rewards aggressive trail-braking, but release brake pressure progressively to rotate the car without overloading the front-left tyre — critical for tyre deg management over a race stint.
• Traction out of Farm, Vale, and Luffield defines your Wellington Straight and Hangar Straight speed — prioritize a clean, straight exit over an ultra-tight entry line, especially as rear tyres degrade mid-stint.
• Club corner (both T6 and T17) is about carrying minimum speed loss on exit — unwind the wheel early and use all the track width to maximize exit speed onto the straights.
• Manage fuel and tyre deg by being slightly less aggressive on kerb usage at Vale and Luffield in the final third of a stint — the M4 GT3's rear tyres fall off faster than fronts under sustained aggressive traction loading.