BMW M4 GT4

TYRES

• Compound: Dry (single-compound GT4)
• Front Pressure: 27.0 PSI (cold)
• Rear Pressure: 26.5 PSI (cold)
• Tyre blanket temp: N/A (GT4 — no heated blankets used in ACC)

ELECTRONICS

• TC1: 3
• TC2: 0
• ABS: 4
• Engine Braking: N/A (fixed on this GT4 model)
• Brake Bias: 58% (front)

SUSPENSION

• // FRONT
• Ride Height: 55
• Wheel Rate FL / FR: 145 / 145
• ARB: 7
• Brake Torque Multiplier: 100
• Brake Bias: 58
• // REAR
• Ride Height: 60
• Wheel Rate RL / RR: 130 / 130
• ARB: 4
• Diff Preload: 90
• Diff Coast: 0.5
• Diff Power: 0.6

DAMPERS

AERO

• Front Splitter: 3
• Rear Wing: 5
• Brake Ducts Front: 3
• Brake Ducts Rear: 3

KEY SETUP NOTE

• The M4 GT4's rear end gets light under Eau Rouge/Raidillon compression and through Blanchimont if ARB/rebound are too aggressive — keep rear ARB soft (4) and rear slow rebound slightly firmer than bump to control weight transfer and avoid a snap on exit of Raidillon under full attack.

TRACK GUIDE

• La Source: brake extremely late but in a straight line — the M4 GT4 rotates well with a touch of trail-braking; carry min speed slightly higher than feels natural, exit wide to maximize run onto Kemmel.
• Eau Rouge/Raidillon: full commitment flat (or near-flat depending on fuel/exit speed) — stay dead center, let the compression load the rear, resist lifting mid-corner as it unsettles the platform.
• Les Combes: brake in a straight line before turn-in, aggressive but stable — late apex first gate to set up a tight second apex; this is a big time-gain zone with confident late braking.
• Pouhon: commit early with a stable aero platform — trust the front end, carry speed through both apexes rather than a slow-in-fast-out approach.
• Bus Stop: sacrifice minimum speed for a straight exit onto the front straight — exit speed here matters more than mid-corner speed for overall lap time.