BMW M4 GT4

TYRES

• Slick compound, Front 27.5 PSI, Rear 27.0 PSI, blankets set to 80°C front/rear (max attack, single lap heat-in via out-lap weaving/braking)

ELECTRONICS

• TC1: 2, TC2: 0, ABS: 3, Engine Map: 1 (max power), Brake Bias: 59% (front)

SUSPENSION

• // FRONT
• Ride Height: 55mm
• Wheel Rate FL / FR: 165 N/mm / 165 N/mm
• ARB: 8
• Brake Torque Multiplier: 100%
• Brake Bias: 59%
• // REAR
• Ride Height: 60mm
• Wheel Rate RL / RR: 145 N/mm / 145 N/mm
• ARB: 5
• Diff Preload: 60 Nm
• Diff Coast: 0.3
• Diff Power: 0.6

DAMPERS

AERO

• Front splitter: 6, Rear wing: 6, Brake ducts front: 2, rear: 2 (minimize drag for straight speed, single-lap heat not endurance cooling priority)

KEY SETUP NOTE

• The M4 GT4 rotates best with a stiffer front ARB and slightly loose coast diff — this lets you trail-brake deep into the Yokohama-S and Schumacher-S without pushing wide, critical since GT4 has less aero grip to mask understeer on a cold, single-lap tyre.

TRACK GUIDE

• Yokohama-S (T1): brake late in a straight line, release progressively — the M4's strong front-end lets you carry extra rotation if you trail-brake to the apex.
• Schumacher-S (T3): commit to a smooth, minimal-steering line — sacrificing the first apex slightly sets up a much faster exit through the second.
• Dunlop hairpin (T5) and Bit-Kurve (T11): get the car rotated early on entry, prioritize a straight exit over apex speed — traction out of these is where GT4 lap time is made or lost.
• Veedol chicane (T13): take a slightly wider, flatter line to protect exit speed onto the very long back straight — this is the biggest speed trap of the lap.
• Ford-Kurve (T18) into the stadium: late apex, get on power early — this feeds the fastest section of the lap, so exit priority is everything.

THEORETICAL BEST LAP

• 1:58.900 — optimal sector compilation, dry, low-fuel, single hot lap, BMW M4 GT4, Nürburgring GP layout (24H combined circuit reference only if using full 24H layout adds ~5:30)

REAL WORLD RECORD

• No official record (GT4 class times vary by event; not centrally tracked like GT3)

SIM RACING RECORD

• 1:57.800 — ACC community hotlap estimate, BMW M4 GT4, GP layout, dry/optimal conditions, top leaderboard pace