Petra Ecclestone wears white gown as she joins her family for rehearsal dinner in Rome

She's set to wed fiancé James Stunt in a lavish £1.3million wedding on Saturday.But it looks like Formula 1 heiress Petra Ecclestone, 22, is already in the bridal mood as she headed out to her rehearsal dinner in a stunning white gown.
The youngest daughter of Bernie Ecclestone and his ex-wife Slavica Radic looked glowing as she left her Rome hotel in a custom-made white lace column gown by Ralph & Russo and matching white satin heels.

Here comes the bride, all dressed in white: Petra Ecclestone leaves her Rome hotel with her family for her wedding rehearsal dinner

As she headed into a waiting car with future husband Stunt, 28, she was followed close behind by her parents and elder sister Tamara.
TV presenter Tamara, 27, looked super glamorous in a bejewelled lilac bandeau dress and big hair, while their Croatian model mother Slavica, 53, wore a blue asymmetrical mini dress with both dresses also custom-made by Ralph & Russo.

The sisters' father Bernie, who is footing the bill for the extravagant three-day wedding, was also spotted outside the hotel wearing a suit, as was Tamara's boyfriend Omar Khyami.

Glamour: The bride-to-be was accompanied by her sister Tamara Ecclestone (centre) and mother Slavica Radic

Time to celebrate: The bride is being supported by her mother Slavica Radic and father Bernie Ecclestone, who divorced in 2009

Petra and Stunt will marry in a lavish ceremony at the 15th century Odescalchi Castle in the Medieval town of Bracciano, just outside Rome.
It famously played host to Tom Cruise's wedding to Katie Holmes in 2006.
Around 250 guests are expected at the ceremony, including Princesses Beatrice and Eugenie, Sarah Ferguson and hotel heiresses Paris and Nicky Hilton with their mother Kathy.

Bringing sexy back: The bride's dress included a large cut-out back

We're getting married in the morning: Petra rides in the car with fiancé James Stunt to their rehearsal dinner

Bernie, who is worth £2.5billion, has paid The Black Eyed Peas over £1million to perform, while family friend Eric Clapton will sing during the newlyweds' first dance for free.
Renting the Italian castle costs £310,000 which includes catering guests accommodation, and £40,000 will be splashed out on a spectacular fireworks display at midnight.

The bride's elder sister Tamara has been excitedly tweeting in the lead up to the big day.

The jet set: American hotel heiresses Paris and Nicky Hilton, with their mother Kathy, leave their hotel for dinner on Friday night

On Friday, she posted a photo of her and Petra's backsides in matching velour tracksuits with 'Bride to be' and 'maid of honour' written across them.
She wrote: 'Just landed in Rome its boiling! So happy to be here. Rome is so beautiful so romantic. Wedding fever so happy.
'Petra and I are getting ready for the rehearsal dinner can't wait.'
Earlier in the week, Tamara had been nervously writing her maid of honour speech for the reception.

Cheeky! Tamara posted a photo of her and sister Petra wearing customised velour tracksuit bottoms

She tweeted: 'Finished my sister's wedding speech. I really don't think I will be able to say it without crying!'
On Monday, Petra went for her last wedding dress fitting - rumoured to be my New York-based designer Vera Wang.
While giving little away about the dress, Tamara wrote on Twitter: 'Just seen my sister try on her wedding dress she looks so beautiful feeling very emotional.
'Love my maid of honour dress Petra chose me a beautiful dress.'

Lavish location: The wedding will take place in the 15th century Odescalchi Castle in the Medieval town of Bracciano, just outside Rome