It has emerged that Middleton has been handed the keys to a 500,000-pound fleet of Jaguars, reports the Daily Star.
Palace aides, organising the big day, have taken delivery of seven new top-of-the-range Jaguar XJ limos for the wedding. The five-litre British-made motors were dispatched from the firm, based in Castle Bromwich in the West Midlands, earlier this month.
Middleton has already said she does not want to arrive at the Westminster Abbey service on Apr 29 in a traditional horse-drawn carriage.
And it is understood palace aides felt that vintage royal Rolls-Royces and Bentleys might be 'too stuffy' for her and Prince William.
"When the Prince of Wales was attacked by students in his Rolls-Royce, it sent a message out about what people think is acceptable," said one aide.
"People seem to think this sort of show of wealth is just too much," the aide added.
It is understood that Middleton will have the pick of the motors for her own use n the big day, with several kept as back-ups in case of mechanical problems.
The supercharged Jaguars reach 60mph in just 4.7 -seconds and they can also top 155mph on the straight.
The remaining Jags will be used by royal minders and to ferry -senior aides and guests from the Abbey to Buckingham Palace.
"They are a modern young couple who like to do things their own way in their own style," said a senior palace aide.
"Miss Middleton might feel a bit daft rattling around with her father in the back of a vast Rolls-Royce Phantom on their way to the Abbey," he added.
Meanwhile, Jaguar remained tight-lipped on the matter.
"Due to demands on security, we are not at liberty to discuss any vehicles sent to the royal household," said a company -spokesman.