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London Taxi Corporation v Frazer-Nash Research: court blocks survey evidence in black cab design row

Jonathan Paton, Founder & CEO4 min read · Last reviewed 27 October 2026
Key factsProcedural ruling

The London TaxivFrazer-Nash Research

Court
High Court
Judgment
3 July 2015
Citation
[2015] EWHC 1840 (Ch)
The lesson

A survey question that asks about "connection" isn't the same as proving customers were deceived.

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The London Taxi Company wanted to use a public survey as evidence that a rival's Metrocab design copied its black cab. The court refused permission, saying the survey didn't really test the right question.

What happened

The London Taxi Corporation, maker of the traditional black cab, sued Frazer-Nash Research and its co-defendant for trademark infringement and passing off, claiming a new Metrocab design copied the look of its taxis. Before the main trial, the claimant asked the court for permission to rely on a pilot survey of members of the public, to run a full survey, and to call survey respondents as witnesses. It relied on principles from earlier cases, Interflora and Zeebox, about when survey evidence can be used in trademark and passing off disputes.

What did the court decide in The London Taxi v Frazer-Nash Research?

The judge refused permission. The survey's key question asked whether respondents thought there was a "connection" between the two taxi manufacturers, but the judge found this was leading and invited guesswork rather than testing the real legal issue, which is whether people were deceived into thinking the two businesses were linked. Some respondents who answered "yes" to the connection question gave explanations that didn't actually show deception. The judge also noted this was an ordinary consumer case, where a trial judge wouldn't need survey evidence to assess the point, and that the cost, estimated at around £185,000 to £205,000, together with the likely disruption to the trial timetable from cross-examining survey respondents, outweighed whatever limited value the survey might have had.

What we learned from this

  • What I'd take from this is that a survey only helps if its questions go directly to the legal test, in this case deception, not a looser idea like whether people think two companies are connected.
  • If you're thinking about commissioning a consumer survey for a trademark or passing off dispute, make sure the questions are designed around the actual legal issue, not a general impression.
  • Courts will weigh the cost and time impact of survey evidence against its likely value, so expensive surveys for ordinary consumer products face a harder test.
  • Getting early legal advice on how a survey is worded can save a business from spending heavily on evidence a court later refuses to admit.

Things to be aware of

  • This decision was about whether survey evidence could be used at all, not about who was right in the underlying design dispute.
  • The cost figures and survey design criticised here relate to this specific case and don't set a fixed price or format for every future dispute.
  • The wider case later turned on whether the taxi's shape could be a trademark at all, a separate legal question from this survey ruling.

The businesses involved

Claimant

The London Taxi Corporation Ltd

Registered in England in January 2013 and based in Coventry, trading as The London Taxi Company. It manufactures the traditional black cab and holds trademarks on the UK trademark register covering its taxi's shape.

Companies House
08357628 Active
Incorporated
January 2013
Registered office
Coventry
Business activity
Activities of head offices
UK trademarks
5
Defendant

Frazer-Nash Research Ltd

An engineering company, incorporated in 1992, that worked on developing the Metrocab, a rival taxi design. According to Companies House records, it is now in liquidation.

Companies House
02695400 Liquidation
Incorporated
March 1992
Registered office
15 Forlease Road
Business activity
Other research and experimental development on natural sciences and engineering
UK trademarks
0

What happened next

  • The wider dispute went to a full trial, where the High Court later held that the London Taxi Company's registered shape trademarks were invalid for lacking distinctive character, clearing the way for the rival Metrocab design.Source: The Guardian, March 2016
  • The London Taxi Company's appeal against the invalidity finding was later dismissed by the Court of Appeal.Source: D Young & Co, January 2018

What others said about it

  • Mishcon de Reya pointed out that the black cab shape trademarks were found to lack the distinctive character needed to function as trademarks.Source: Mishcon de Reya LLP, January 2018
  • Addleshaw Goddard's review of the litigation traced how the shape trademark dispute progressed through to the Court of Appeal.Source: Addleshawgoddard

How we can help

If something in this case sounds familiar, talk it through with us. The first call is free for new clients.

This page is for information purposes only and does not constitute trademark advice or guidance. Summary drafted with AI assistance from the published judgment and checked by The Trademark Helpline (how we write these). Judgment: [2015] EWHC 1840 (Ch) on Find Case Law, published under the Open Justice Licence. Company details from Companies House; trademark counts from the UK trademark register. Last reviewed 27 October 2026. Report an error.

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