Subaru Impreza S4 Rally - Powys (Medium Gravel)

Key Characteristics: 1.Alignment: A relaxed Rear Toe-in of +0.20° (down from +0.40° in V1) acts as a gentle geometric stabilizer. It keeps the rear planted during high-speed lift-off without the earlier "self-straightening" push, while still letting the car pivot in tight hairpins. Front camber sits at -1.38° with a slight -0.20° front toe for crisp turn-in. 2.Differential: Viscous front/centre/rear set to 20 / 14 / 22 kgf-m/100rpm. With no LSD locks available on this car, the rear viscosity is kept highest to maximize exit traction, while the centre stays relatively free for smooth rotation. 3.Suspension & Damping: The rear Anti-Roll Bar is kept compliant at 8.62 N/mm to preserve rear-axle independence over medium-gravel bumps. Damping is firm but balanced — Front Slow/Fast Bump +4 with Slow Rebound +4, Rear +3 across the board, and a 0.84 mps bump-zone split — controlling pitch and keeping both axles planted through compressions. 4.Brakes: A 59% front bias lets you aggressively trail-brake to rotate the car into corners, backed by a braking force of 3,216 N-m tuned for dry, hard-packed gravel. 5.Gearing: A Final Drive of 0.240 keeps the flat-four in its powerband, covering both the tight technical sections and the faster forest straights without running out of revs. 6.Best For: Drivers wanting a predictable, confidence-inspiring car that stays stable under braking and lift-off, with sharp, precise turn-in — ideal for the flowing yet technical Powys stages. 7.Pro-Tip: If the rear ever feels a touch heavy or sluggish to rotate through tight, stop-and-go sections, try a smoother, more momentum-based line and keep a sliver of throttle on entry to maintain drivetrain load. Should that sensation persist across multiple stages, the first lever to revisit would be the rear Anti-Roll Bar (8.62 → slightly softer) or rear spring rate to free up the back end — but as tuned here it's been solid across a full 7-stage run.