A polar explorer set to become the first woman ever to reach the North Pole solo has revealed the extreme lengths she is going to for the treacherous journey – including a gruelling training regime that involves dragging enormous tyres so heavy she's even had to upgrade her car to transport them.

Harpreet Chandi MBE, also known as 'Polar Preet', is taking on the treacherous journey alone, which until now has only been completed by two men.

The 36-year-old four-time Guinness World Record holder faces drifting ice, open water leads - dangerous cracks in the ice - and temperatures as low as -50°C.The former British Army officer is preparing her body to pull a pulk – a sled-like carrier – hauling more than 130 kg of food and equipment by lugging two huge tyres through her hometown of Derby and surrounding areas, a brutal test of strength and endurance.

Preet said: "I've decided to use the Dacia Bigster, just to fit the tyres in!"

"It's bigger than any car I've had before, which means it fits my tyres easily, as well as all my gear.

"I need to be consistent with my training, so it's great to be able to carry everything with me in a car I know is capable of the same extremes that I need to put my body through."

She will face her toughest test yet come March this year.

Preet has previously completed expeditions to places such as the South Pole but the North Pole presents unique challenges in an unpredictable landscape.

"My aim is to ski solo and unsupported to the North Pole," said Preet.

"If I'm successful, I'll be the first woman in history to ski solo to the North Pole and the South Pole.

"I'm on the ice alone, but I never walk alone. I carry my culture, my heritage, the generations before me - they're all with me.

"Historically, the North Pole has been a place where hopes and dreams can be lost," she said.

"To take it on solo and unsupported means being entirely self-reliant: no resupplies, no outside help.

"It's a test of physical endurance, but even more so of mindset and resilience.

"My sled was named after my niece, Simran, and my skis after my nephew.

"Thinking about them helps keep me going out there alone.

"The first couple of weeks of this trip will be harder than anything I've ever done in my life.

"It will be about minus 50 degrees. I'm on sea ice. It is moving and shifting. I have an immersion suit for when I have to literally get into the water.

"There are polar bears there – it's going to be a hard trip.

"But, despite all this, I wasn't born into adventure.

"People say the outdoors is for everyone, and it is, but when your community hasn't had that connection, adventure feels like a language that you were never taught, and very few around you speak it.

"I just started by taking one step and then another.

"That's why I've chosen the Dacia Bigster for my training – I need something practical that can carry my kit and tyres and get me where I need to be."

"I want others, especially young people, to see that you don't have to come from a certain background to push boundaries."

Preet previously made history during a solo expedition to the South Pole.

"The first time I ever got to the South Pole, it was quite emotional, knowing that I was going to be the first woman of colour to do a solo expedition.

"I've done things I never, ever thought I was capable of.

"Whatever it is you want to do, even if you see nobody that looks like you doing it, you can do it."

While Preet's challenge may be extreme, it's rooted in the same idea as any everyday adventure – pushing yourself beyond the familiar, wherever you happen to be.

Lina Ribeiro, Dacia UK Brand Director, said: "We know that adventure isn't just about far-off places.

"It's about finding new experiences wherever you are.

"At Dacia, we build cars that help make that possible, whether it's a weekend escape or something bigger like Preet's incredible challenge."