XYZ Racing Tarmac Rally Coilovers — Buick EXCELLE 2005-2026

The Buick Excelle is an unusual chassis to find on a tarmac stage entry list, but the BU01 platform’s front-strut, rear semi-independent layout is exactly the kind of mid-weight saloon that rewards a proper rally-spec damper. Pothole-strewn sealed stages punish standard road suspension within a single recce loop – the body floats, the front tucks under braking, and the inside-rear unloads on every camber change.

This is the XYZ Racing Tarmac Rally coilover built specifically for the Excelle (BU01, 2005-2026). It is set up for sealed-stage tarmac use – the spec that lets you commit to a kerb on the apex without the chassis hitting bump-stop and skipping wide on exit.

What this coilover does for your 2005-2026 Buick Excelle

Fitted to the Excelle, the Tarmac Rally damping curve is built to soak up the broken edges of a sealed stage without losing platform control through quick direction changes. The valving absorbs jolts from kerbs and patched tarmac and damps the shock back into the body, which keeps the contact patch loaded and the tyre actually doing work instead of skipping. You will feel the difference in two places first – braking into a tightening corner stays flat, and mid-corner bumps no longer translate into a steering correction. Ride height adjustment lets you set a workable rally stance for the Excelle’s ground clearance without compromising suspension travel, which is the trade-off that catches most road-spec coilovers out on a stage.

About the Tarmac Rally coilover

The Tarmac Rally is the dedicated sealed-surface spec in the XYZ Racing rally line – separate from the gravel and snow setups because the loadings are completely different. Spring rates, damper valving and travel are all calibrated for the high-frequency, low-amplitude inputs of broken tarmac rather than the long-travel hits of a forest stage. The construction prioritises impact absorption: the damper is built to take a hard hit across a bump, bleed the energy out of the body, and recover before the next input arrives. Every setting in the kit comes out of XYZ Racing’s own tarmac competition programme, so the baseline you bolt on is a starting point that has already been raced – not a generic ride-height adjustable converted to "rally" with a spec-sheet label.

Fitment for the Buick Excelle (2005-2026)

This kit is fitted to the Buick Excelle on the BU01 chassis code, covering the 2005 to 2026 production run. Confirm your chassis code against your V5 before ordering – the Excelle nameplate spans more than one platform globally, and the BU01 designation is the one this coilover is built around.

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Pick your spring rates, ride height and damping spec for the Excelle below and build the kit to your stage notes.