Queen Elizabeth II's hearse was customized for her

Queen Elizabeth II's casket was carried across Scotland on Sunday in a black hearse that was specially prepared for the task.

The vehicle was provided by the William Purve Funeral Directors service, which saw its website crash after its name was seen on the vehicle's window.

The car was not originally black, however, as William Purve's fleet is famously silver.

"I can confirm that the hearse is one of our Silver E-Class Mercedes-Benz fleet which is wrapped in black to comply with Royal protocol," a spokesperson for the Edinburgh-based company told Fox News Digital.

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"The hearse, and our team, are part of a meticulously planned and heavily rehearsed operation which is overseen by Palace officials."

The car is based on a Mercedes-Benz E-Class and was built by Germany's Binz International, according to Drive.

The company has been in business since 1936 and originally built horse-drawn ambulances and hearses, but started converting luxurious Mercedes-Benz vehicles in the 1950s.

The model used for the Queen's procession features an extended wheelbase that allows it to maintain two rows of passenger seating. Binz even uses the same body panel supplier as Mercedes-Benz to maintain its appearance and quality.

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The Queen's coffin will be flown from Edinburgh to London on Tuesday evening, where it will be transferred to a State Hearse that will transport it to Buckingham Palace. 

The exact vehicle that will be used has not yet been revealed, but the Queen Mother's coffin was transported in 2002 by a Jaguar hearse built by Britain's Wilcox Limousines.

Elizabeth's husband, Prince Philip's coffin was famously carried during his services in 2021 by a custom Land Rover Defender the helped design.

He reportedly once asked Elizabeth to "just stick me in the back of a Land Rover and drive me to Windsor."