Company: PLSAY
Filing Date: 2025-07-10
Form Type: 6-K
Source: 0001104659-25-066853
Chunk: 0

Company: Polestar Automotive Holding UK PLC
Filing Date: 2025-07-10
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 July 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 July 10, 2025, Polestar
Automotive Holding UK PLC (“Polestar”) issued a press release announcing its preliminary estimates for global volumes for
the second quarter of 2025. 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: July 10, 2025 | POLESTAR AUTOMOTIVE HOLDING UK PLC 
 By:                                | /s/ Michael Lohscheller |
|:--------------------|:-----------------------------------|:------------------------