The TX4 is a purpose-built taxicab (hackney carriage) manufactured by The London Taxi Company, a subsidiary of Geely Automobile of China.

High-profile individuals included Arnold Schwarzenegger and Barbara Windsor, with some VIPs undertaking more than one journey in the fuel cell electric taxis.

[10] Geely sells the TX4 cab under their "Englon" brand (phonetically similar to "England"), but have also developed a new version called the TXN.

[11] The TX4 taxi can be seen in service in Belfast, Pristina, Bahrain, Baku, Berlin, Cairo, Charleston, South Carolina, Hangzhou, Hudson, Massachusetts, Johannesburg, Las Vegas, Nanjing, Ottawa, Perth, Sydney, Melbourne, Riyadh, Singapore, Bangkok and Zhuhai.

[13] The news of the fires hit the headlines after Big George, a presenter on BBC London 94.9, received photos of a taxi that burst into flames outside Stringfellows on Upper St. Martin's Lane on 12 September 2008.

Manganese Bronze, the now troubled maker of London taxis was thrown into further turmoil after it announced plans to recall 400 black cabs and suspend sales, following discovery of a steering fault.

Manganese reported the discovery of a defect with new steering boxes in its TX4 models, which had been introduced in February 2012 to vehicles produced at its Coventry factory.

Manganese, which suspended trading of its shares earlier in the day, said it was working with Chinese partner Geely (already a 20% shareholder in the business) to fix the steering fault.

Production at the Coventry site resumed in September 2013,[15] ownership of the assets formerly owned by Manganese Bronze Holdings having now passed to a new company, The London Taxi Corporation, a subsidiary of Geely of China.