XYZ Racing Tarmac Rally Coilovers — Mercedes-Benz G CLASS G63 W463 4WD 2018-2026

Sealed-stage tarmac rally puts a different set of loads through a car than a track day ever will: repeated, unforgiving hits off crests and compressions, at speed, with no runoff to lean on. The G63 W463 brings a genuinely unusual problem to that discipline – a body-on-frame 4WD platform with a kerb weight most stage cars never carry, and a high centre of gravity that fights you the moment the surface gets uneven.

The XYZ Racing Tarmac Rally coilover is built for exactly that scenario. It’s the spec to reach for if you’re campaigning a G63 on closed asphalt stages rather than building it for a Sunday blast or a static show.

What this coilover does for your 2018-2026 Mercedes Benz G Class G63 W463 4WD

Big hits are the defining problem on a tarmac stage, and this damper is calibrated to absorb them rather than transmit them into the chassis. Across large compressions and sharp edge hits, the shock body is controlled instead of left to crash through its stroke, which keeps the G63’s considerable mass settled instead of pitching and rolling into the next corner. That control has a direct payoff at the contact patch: better-managed body motion means more consistent tyre loading through a stage, which translates into traction you can actually use on the exit of a hairpin rather than traction you have to guess at. On a 4WD platform carrying this much weight, that stability is what lets you commit to the next braking point with confidence instead of backing off to protect the car. The result on a W463 chassis specifically is a suspension that feels planted under the kind of repeated, high-energy inputs a tarmac stage throws at it, corner after corner.

About the Tarmac Rally coilover

XYZ Racing built this damper around one job: surviving and controlling the impact loads of sealed-stage tarmac rally, where surfaces are rougher and less predictable than a circuit but speeds are still high. The valving is set up to soak up hard hits from broken tarmac and mid-corner bumps without the shock body kicking back into the chassis, which is what keeps the tyre in contact with the road instead of skipping across it. That focus on vehicle stability under compression is the core of the spec – the aim is predictable handling through a stage rather than the sharpest possible feel over smooth ground. XYZ Racing states the settings on this coilover are drawn directly from its own Tarmac Rally racing programme, tuned specifically around this use case rather than adapted from a circuit or fast-road base. For a platform like the G63, where unsprung mass and ride height already work against you on rough surfaces, that stage-specific calibration is the difference between a coilover that copes and one that was built for the job.

Fitment for the Mercedes Benz G Class G63 W463 4WD (2018-2026)

This kit is built to the ME61 chassis code, covering the Mercedes Benz G Class G63 W463 4WD across the 2018-2026 model years. Confirm your G63 sits within this year range before ordering, as the W463 platform has run multiple suspension revisions over its production life.

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Spec your ME61 Tarmac Rally kit for the G63 W463 and configure yours below.