One Polestar Owner's Cargo Mat Hunt Is a Note for the Accessory Team

One owner on r/Polestar has been measuring trunk lips. The thread title reads "have become the person measuring trunk lips in a Polestar, AMA", and the post body is now removed, so the detailed account behind it is no longer publicly verifiable.

The complaint type is still familiar in EV ownership forums. Owners want cargo mats that stay put and contain spills, especially when they open underfloor storage often enough for mat thickness to matter. When the official path is hard to find or hard to trust, the search moves to social threads and aftermarket listings.

What we can still verify from the thread

The Reddit title names no model. Commenters may discuss specific Polestar trims secondhand, and AutonomyEV cannot treat any model identification as coming from the original poster. The removed body, as community retellings describe it, reportedly walked through several mat trials before keeping one with enough structure to resist sliding and a raised edge tall enough to hold a spilled drink. It also reportedly flagged a sub-floor panel lifted often enough for mat thickness to matter. Without the post text, those details remain anecdote tied to a deleted source.

What survives reads as an accessory fitment hunt. There is no safety claim or warranty event described in the material still visible on the thread.

Why load-bay geometry keeps coming up

For Polestar SUV owners sizing a mat, the bay itself sets the constraints. Independent measurements for the Polestar 3 cargo area put volume at about 597 L to the roof behind the rear seats, roughly 1,411 L with the seats folded, plus on the order of 90 L in underfloor storage. Lip height, sill protection, and how a mat sits when that floor panel is raised are practical questions those numbers alone do not answer.

Polestar's published Polestar 3 specifications describe the vehicle at a high level. They do not, on their own, give an owner confidence that a given mat matches daily use patterns like frequent underfloor access.

The first-party option already exists

A common read of owner frustration like this is that the brand never shipped an answer. For the Polestar 3, that picture is incomplete. A genuine Polestar reversible rear cargo mat (part PO-035003, charcoal, reversible fabric and plastic with bumper protection, listed for 2024+ Polestar 3) is sold as an official accessory and resold as a genuine part through independent retailers.

The gap suggested by the r/Polestar thread is therefore narrower than "build the mat." It is whether the owner could discover the official option at order time or delivery, whether it appears clearly in the purchase path, and whether lip height, rigidity, and underfloor clearance would have matched what that owner wanted. AutonomyEV has not verified that PO-035003 would have satisfied the deleted post's criteria. We also have no evidence this pattern repeats across a meaningful share of owners.

Where it touches automaker strategy

Accessory programs still matter for premium brands after the sale. A cargo mat at known fit is a small line item that compounds across a model run. When an owner ends up comparing third-party mats on social channels, the first-party funnel has lost that customer for that SKU even if an official option sits in the catalogue.

AutonomyEV has not found a public Polestar statement tying cargo accessory fitment to the specific lip and underfloor concerns raised in the deleted thread. One social thread is one data point. We are not generalizing it to a brand-wide product defect.

AutonomyEV's opinion

The surviving signal from this thread is daily friction in the load bay: a car that photographs well still asks owners to solve boring floor geometry on their own. Polestar already lists a reversible rear cargo mat for the Polestar 3 through its accessory channel. The more useful product work is to make that path obvious at handover, document lip height and underfloor clearance in owner-facing language, and close the loop when forum threads show someone measuring trunk lips in frustration.

That is lighter lift than designing a new part from scratch. It still needs someone on the accessory team reading what remains of the thread and asking whether the official mat is easy to find and easy to trust before the aftermarket becomes the default.