The Queen is riding around her castle on a £62,000 deluxe golf cart as she continues to battle stiffness in her legs, aides say.
Her Majesty, 95, received a delivery of the gadget-packed buggy two weeks ago, and she has already been for a spin around Windsor Castle.
The cart comes with shielding for any weather, a fridge and an information screen, the Sun Online reports.
A palace source said: “She’s battled stiffness in her legs recently so the cart is perfect.”
Days after the 43mph electric buggy turned up, the Queen treated her pet corgis to a lift around her private grounds.
Aides sat the pooches next to her in the four-seat cart as they went for a brief spin around the castle.
The cart - dubbed the Queen Mobile - was ordered to help Her Majesty move around her home as she continues to struggle with mobility, aides say.
A Windsor Castle source told the publication: “The cart arrived in the last fortnight.
"She and her aides have already used it. Last week she took the dogs out in it for a tour around the private grounds."
The vehicle - which is said to put some regular cars "to shame" - was built by Danish firm Garia.
The "Courtesy" model can reach a top speed of 43mph with a range of 50 miles before it needs to be recharged with a lithium battery.
It comes equipped with "weather enclosure" doors - meaning the Queen won't risk a chill while nipping from one wing of the manor to another.
It has a tablet-screen with maps and weather updates, a fridge should Her Majesty need a snack, and even Bluetooth speakers.
A source told the Sun that staff agree the buggy is a great solution to the Queen's mobility issues.
They added they hope it will help her to keep up with her engagements for "as long as possible".
The Queen would prefer to walk to public appearances, but she is "struggling" at present, they said.
The Queen's mind is still "razor sharp" and she has no plans to abdicate, they add.
Despite her mobility issues, the Queen is hoping to attend the Duke of Edinburgh's memorial service at Westminster Abbey in just a few days.
Large numbers of the royal family are set to gather next Tuesday, alongside Philip's friends, colleagues, representatives of organisations he supported and foreign royals to pay tribute to the 99-year-old duke who died in April last year.
There are fears Her Majesty could miss the event in honour of her husband of more than 70 years after recent bouts of bad health.
A statement read: “Members of the Royal Family will attend a Service of Thanksgiving for the life of HRH The Prince Philip, Duke of Edinburgh, at Westminster Abbey on Tuesday, 29th March.
“The Service will give thanks for The Duke of Edinburgh’s dedication to family, Nation and Commonwealth and recognise the importance of his legacy in creating opportunities for young people, promoting environmental stewardship and conservation, and supporting the Armed Forces.
“The Service will in particular pay tribute to The Duke of Edinburgh’s contribution to public life and steadfast support for the over 700 charitable organisations with which His Royal Highness was associated throughout his life.”
The Queen has already this month missed the Commonwealth Day service, with the decision to cancel her appearance understood to be related to her comfort travelling the 26-mile journey from Windsor Castle to London.
