XYZ Racing Tarmac Rally Coilovers — Mercedes-Benz C CLASS W205 8 CYL 4WD 2015-2021

The W205 C63 and C63 S run a biturbo V8 over the front axle and send power through 4MATIC to all four corners, a combination that sealed-stage tarmac rally punishes hard if the suspension underneath it can’t keep up. XYZ Racing’s Tarmac Rally coilover for the Mercedes Benz C Class W205 8 CYL 4WD is built around that exact problem: keeping a heavy, all-wheel-drive saloon settled when the surface changes shape mid-corner. This is a full coilover kit, height and damping both adjustable, not a spring-only bolt-on.

Where a Super Sport kit is tuned for smooth B-roads, Tarmac Rally settings are built for the compressions, crests and mid-corner bumps of a closed stage taken at pace. On a car this heavy, that means damping that reads a hit and settles before the next one arrives, instead of the car pattering the rest of the way through the corner.

What this coilover does for your 2015-2021 Mercedes Benz C Class W205 8 CYL 4WD

Fitted to a 2015-2021 C Class W205 8 CYL 4WD, this kit does the job a rally-spec damper exists for: it absorbs the impact of broken, uneven tarmac before that hit reaches the chassis and unsettles the car’s line. A factory C63 damper sends a hard strike straight through the body; this set-up suppresses that shock at the wheel instead, so the tyre stays loaded on the road and keeps generating traction rather than skipping across it. That matters more on a 4MATIC car than a rear-drive one, because all four tyres are trying to put power down at once, and a wheel that’s briefly light over a crest is a wheel that isn’t doing its share of the work. The result on this platform is a car that holds its stability through a rough, fast stage rather than going vague the moment the surface turns ugly, with height and damping adjustment giving you room to set the C Class up for the specific event ahead.

About the Tarmac Rally coilover

XYZ Racing’s Tarmac Rally line is a coilover built around one job: controlling a car over broken, ungraded tarmac at speed, rather than the smooth, repeatable surface of a circuit. The valving is set up to soak up sudden impacts, from a rough patch of road to a full compression over a crest, without that hit passing straight through to the chassis. That control is what keeps the tyre loaded and gripping instead of skittering across the surface after a hard landing, which is the difference between a car staying pointed where you aimed it and one that doesn’t. The coilover body allows independent ride height adjustment, useful when a stage car needs a different set-up for a fast, sealed route versus a slower, tighter one. XYZ Racing states the damping settings here come directly from its own Tarmac Rally programme, built from real stage running rather than a bench estimate, which is why this kit’s character reads differently to its Top Sport or Super Sport siblings built for circuit and road use.

Fitment for the Mercedes Benz C Class W205 (2015-2021)

This kit is built to the ME07-9 fitment for the Mercedes Benz C Class W205, covering the 8-cylinder 4MATIC cars built between 2015 and 2021, the C63 and C63 S generation of this chassis. The W205 platform spans several engine and drivetrain configurations, so confirm your car sits in the 8 CYL 4WD bracket before ordering, since the 4-cylinder and 6-cylinder versions of this chassis use a different kit.

What buyers also search for

• Mercedes Benz C Class W205 suspension upgrade for tarmac rally and stage use.
• C63 W205 4MATIC coilover set-up for broken and uneven road surfaces.
• Mercedes C Class W205 8 CYL damping built to hold traction over rally-stage bumps.
• W205 C63 ride height and damping adjustment for tarmac rally events.

Height and damping are yours to set once the kit is on the car, configure your Tarmac Rally spec for the W205 C Class below.