She’s one of the heirs to her father's billions, so does socialite Petra Ecclestone really shop at the 99 Cent Store?

Sadly the English born socialite isn’t that down-to-earth and was actually walking the aisles of the budget shop in a ball gown pulling a suitcase behind her as part of a photo shoot for charity.

Even a billionaire can get shocked over the price of a drink!

Petra Ecclestone’s lavish $18 million wedding was a star studded event catered by one of the best chef’s in the world and held in a beautiful castle near Rome, but when her father saw the bill for the booze he was shocked!

Petra Ecclestone paid a whopping $85 million for Candy Spelling’s mansion and has put millions into the remodel and RadarOnline.com has photos of the stunning estate.

The daughter of billionaire Formula 1 boss Bernie Ecclestone, Petra used 500 workers to help her redesign the stunning home that she shares with her new hubby James Stunt.

There's no such thing as a bad economy when your last name is Ecclestone.

Petra Ecclestone's mother Slavica says the $18.75 million bill for Petra’s wedding to English jetsetter James Stunt at Rome's Odescalchi Castle this past August was "worth every penny, because it made my daughter happy.

PHOTOS: Petra Ecclestone Weds In lavish Ceremony

"I don't care how much the wedding cost, as it was a once-in-a-lifetime occasion ... who cares about money?" said Slavica, the ex-wife of Formula One head Bernie Ecclestone, whose net worth Forbes last year estimated as $4 billion.

British heiress, Tamara Ecclestone's mother tells her she has "mental problems" because of her spending, RadarOnline.com can report.

The 27-year-old socialite – the daughter of Formula 1 billionaire Bernie Ecclestone and Croatian model Slavica Ecclestone -  admits she loves her huge wardrobe and accessories collection, though her mom gets annoyed when she sees her excesses.

PHOTOS: Tamara Ecclestone’s Super Sexy Tyler Shields Shoot

She said: "I am aware of the recession. My mom is always having a go at me about my spending – when she sees all the clothes in my dressing room she tells me I have mental problems. But I can't pretend this isn't my life.

"OK, I feel bad about it sometimes, but it doesn't make me a horrible person. I'm not going to lie and say I don't love clothes and bags.

Petra Ecclestone’s wedding night didn’t exactly go “as planned.”

The stunning 22-year-old heiress and her new husband James Stunt's married life didn't get off to the ideal start, after the groom’s best man drunkenly appeared in their hotel room and got into bed with them!

She said: "The wedding night didn’t exactly go as planned. We were in bed when we heard this moaning from the corridor; it was our drunken best man, who ended up getting into bed with us for an hour and a half. There I was thinking, 'I’m pretty sure this is not how things are supposed to happen.’ ”

How many heirs can you fit at one restaurant table in Hollywood? Four, if your names are Ecclestone, Hilton and Davis!

That was the gathering at Boa Steakhouse Saturday night, and RadarOnline.com has the pictures.

PHOTOS: Petra Ecclestone, Paris And Nicky Hilton, And Brandon Davis Out To Dinner

The newest heir in town, Petra Ecclestone, 22, met up with sisters Paris and Nicky Hilton, and Brandon Davis for a casual evening out. Petra's new husband James Stunt was also along for the fun.

Petra, who recently parted with $85 million of her daddy's -- Formula 1 boss Bernie Ecclestone -- money to purchase Candy Spelling's mansion for $85 million, seems to be settling in nicely to her new life in SoCal.

PHOTOS: Petra Ecclestone Hangs With Brandon Davis In NY

The Hilton sisters have been her pals for years, and both attended her lavish wedding last month.

Davis, the grandson of the late oil baron Marvin Davis, played middleman on Petra's estate purchase, reportedly suggesting to Petra that she buy it and then hooking her up with the Hilton girls' dad, real estate broker Rick Hilton, to represent her in the deal.

PHOTOS: Petra Ecclestone Weds

RELATED STORIES:

Petra Ecclestone's Sister Tamara Shows Off Her Boobiful Bikini Body

Pippa Middleton Vs. Petra Ecclestone! Britain’s It Girls

Ten Fun And Fabulous Facts About British It Girl Petra Ecclestone

Just in case you're living under a rock and don't know who she is, Petra Ecclestone had her new Land Rover personalized. The heiress now has 'PETRA" emblazoned across the front of the vehicle.

That made it easy for everyone to spot the newlywed heiress -- and her SUV -- in Beverly Hills Friday along with her ever-present new BFF, Brandon Davis.

PHOTOS: Petra Ecclestone, With Her Personalized SUV, and Brandon David In Beverly Hills

As RadarOnline.com previously reported, Petra and Brandon have been inseparable ever since she and hubby James Stint landed in SoCal.

PHOTOS:  Petra And Tamara Ecclestone Double Date In Hollywood

Yesterday, their busy agenda had them lunching at celeb-fav eatery, Madeo, and then going for a tan.

Petra, daughter of Formula 1 billionaire owner Bernie Ecclestone, is now busy overseeing renovations on Candy Spelling's former mansion.  She paid $85 million for the estate and will be spending at least a year updating it.

PHOTOS: Petra Ecclestone Weds

RELATED STORIES:

Petra Ecclestone's Sister Tamara Shows Off Her Boobiful Bikini Body

Pippa Middleton Vs. Petra Ecclestone! Britain’s It Girls

Ten Fun And Fabulous Facts About British It Girl Petra Ecclestone

At first glance, it seemed like an unlikely pairing --  millionaire Brit heiress Petra Ecclestone and Hollywood's convicted felon heir Brandon Davis sharing a friendly lunch Saturday -- but RadarOnline.com has photos.

Actually newlywed Petra, heir to daddy Bernie Ecclestone's Formula 1 fortune and Davis, whose granddad was oil mogul Marvin Davis, have been acquaintances for years and have mutual friend Paris Hilton in common.

PHOTOS: Petra Ecclestone Hangs With Brandon Davis In NY

Casually dressed in a plaid shirt, Davis joined Ecclestone and her husband James Stint, for a laid back lunch at Nello restaurant.

Davis reportedly was the one who suggested to 22-year-old Ecclestone that she purchase Candy Spelling's 57,000-square foot, $85 million mansion, a deal which Paris' dad, Rick Hilton, a real estate broker, handled.

PHOTOS: Petra Ecclestone Weds

Paris and the rest of the Hilton family were among the 250 lucky guests to attend Petra's $6.5 million wedding to Stint at in a castle in the Italian town of Bracciano last month.

While Petra has recently made headlines because of her massive fortune and big spending habits, her L.A. pal most often catches the attention of the media -- and the police -- due to his hard-partying ways.

PHOTOS: Meet The Ecclestones - Petra And Her Family

As RadarOnline.com previously reported, Davis, 32, was arrested in April for felony drug possession and assault following an incident at the Roosevelt Hotel in Hollywood.  In June, he pleaded guilty to the cocaine possession charge and no contest to battery, a misdemeanor, for which the judge sentenced him to a drug diversion program.

Back in 2006, Brandon checked into the famous Promises rehab facility at a cost of $75,000-per-month.

PHOTOS:  Petra And Tamara Ecclestone Double Date In Hollywood

Brandon’s brother Jason has had several drug-related arrests of his own, including one just days after he completed shooting the latest season of Celebrity Rehab.

RELATED STORIES:

Petra Ecclestone's Sister Tamara Shows Off Her Boobiful Bikini Body

Pippa Middleton Vs. Petra Ecclestone! Britain’s It Girls

Ten Fun And Fabulous Facts About British It Girl Petra Ecclestone

She Works Hard For Her Money!

Even though she definitely doesn't have to worry about ever working a day in her life, billionaire socialite Petra Ecclestone is keen to clear up reports that she lives off her parents’ fortune.

PHOTOS: Take A Peek Inside Petra Ecclestone’s New Mega-Mansion