XYZ Racing Street Advanced Coilovers — Smart FORFOUR (W454) 2004-2007

The W454 was Smart’s odd one out: a front-engined, front-drive five-door built on the Mitsubishi Colt platform at NedCar, with a tall body and soft factory springs that lean the moment you load the front axle. The XYZ Racing Street Advanced coilover for the Smart Forfour (W454) is built to take that lean out without turning a usable city car into a stripped-out track tool.

Street Advanced is XYZ Racing’s adjustable fast-road option, and it suits this car for a reason. Height and damping are both in your hands, so a tall 2004-2007 hatch designed for commuting can be dropped over its wheels and tied down through corners while still coping with a British B-road.

What this coilover does for your 2004-2007 Smart FORFOUR (W454)

The first thing you notice is the body staying flat: the standard Forfour’s soft roll on turn-in gives way to a front end that takes a set and holds it. Lowering the ride height drops the centre of gravity on a car that always looked tall for its footprint, sharpening the way it changes direction and giving it the stance it never had from the showroom. The 720-way damping range means you can run a softer setting for daily mileage and town speed bumps, then firm things up for a weekend run when you want the front-drive chassis to bite harder under braking. Because spring rate and damping work together rather than fighting each other, you get tighter wheel control without the brittle, crashy ride a cheap drop kit leaves behind.

About the Street Advanced coilover

Street Advanced is the most popular kit in the XYZ Racing line and the product the company has refined over several years of development. It carries 720 individual damping settings, so rebound and ride feel can be tuned in fine steps rather than the handful of clicks a budget kit gives you. XYZ developed and validated the design through international competition before bringing it to road use, which is where the consistency comes from. It is built to cover both normal road driving and the occasional track day on the same hardware, which is exactly the brief for a Forfour that still earns its keep as everyday transport. For an owner who wants real control over how the car rides and handles, this is the sensible core upgrade.

Fitment for the Smart FORFOUR (W454) (2004-2007)

This kit is matched to the W454-generation Smart Forfour built across the 2004 to 2007 model years, the front-engined, front-wheel-drive car that shared its underpinnings with the Mitsubishi Colt. Confirm your chassis code reads W454 and that your car falls inside that year span before ordering, and check your spec against the configurator options below.

What buyers also search for

• Smart Forfour W454 coilover upgrade for road use with adjustable height
• Smart Forfour suspension that reduces body roll on a tall city hatch
• Smart Forfour W454 fast-road coilover with fine damping adjustment
• Lowering kit for the 2004-2007 Smart Forfour that keeps daily comfort
• Adjustable coilovers for the front-drive Colt-platform Smart Forfour

Set your ride height and damping the way you want them – pick your spec and configure yours below.