Company: PLSAY
Filing Date: 2025-11-14
Form Type: 6-K
Source: 0001104659-25-111960
Chunk: 0

Company: Polestar Automotive Holding UK PLC
Filing Date: 2025-11-14
Form: 6-K
Chunk 0
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<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of November 2025

Commission File Number: 001-41431

Polestar Automotive Holding UK PLC

Assar Gabrielssons Väg 9

405 31 Göteborg, Sweden

(Address of principal executive office)</div>

Indicate by check mark whether the registrant files or will file annual
reports under cover of Form 20-F or Form 40-F.

<div align='center'>Form 20-F x Form 40-F ¨</div>

Indicate by check mark if the registrant is submitting the Form 6-K in
paper as permitted by Regulation S-T Rule 101(b)(1): ¨

Indicate by check mark if the registrant is submitting the Form 6-K in
paper as permitted by Regulation S-T Rule 101(b)(7): ¨

<div align='center'>INFORMATION CONTAINED IN THIS REPORT ON FORM 6-K</div>

On November 14, 2025, Polestar
Automotive Holding UK PLC issued a press release announcing its plan to implement a ratio change of its Class A, Class B, Class C-1 and
Class C-2 American Depositary Shares to the respective Class A, Class B, Class C-1 and Class C-2 ordinary shares. A copy of the press
release is attached hereto as Exhibit 99.1.

Exhibit 99.1 to this Report
on Form 6-K shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934
(the “Exchange Act”) or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference
in any filing under the Securities Act of 1933 or the Exchange Act.

<div align='center'>EXHIBIT INDEX</div>

<div align='center'>SIGNATURES</div>

Pursuant to the requirements of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

| Date:             
 November 14, 2025 | POLESTAR