A growing royal family means it might be time for a new car.

Crowds lined the streets fluttering teeny union flags, the Red Arrows flipped about with delight and the BBC News channel presented more than 70 hours of jubilant live footage to celebrate the exciting news of another royal foetus in development. Nowhere does royals like the UK.

As the initial burst of joy subsides, and with three little ones to chauffeur about, Prince William might want to think about an upgrade. Here are our top five cars for the new royal baby.

The British choice: Range Rover SV Autobiography Dynamic

Car for the Royal Baby

The royals already have a taste for Range Rovers and indeed the wider Land Rover family – QE2 can still be seen plugging her classic Defender around Balmoral, and the royals are often chauffeured through London in Range Rovers – so sticking with the brand is a safe bet. However, with three children potentially needing to be in three different places, some added pace might be welcome.

We humbly submit the Range Rover SV Autobiography for His Royal Highness's consideration. It has the usual all-terrain expertise of its siblings, perfect for exploring the grounds of the family houses, but this one is powered by a 5-litre supercharged V8 and 542bhp should be enough to do the boarding school run in record time.

A pair of Isofix points in the back will cater for Princess Charlotte and the new arrival, while Prince George can make the most of the decent-sized middle chair for his booster seat.

Car for the Royal Baby
Car for the Royal Baby

The left-field choice: Volvo XC90

Car for the Royal Baby

It might be a left-field choice when you look at the royal family’s fleet of best-of-British Jaguar Land Rover products, but the Volvo XC90 takes safety very seriously.

Euro NCAP awarded the XC90 with the full five stars in its crash tests, and the car scored 97 percent for adult safety, 87 percent for child safety and 100 percent for its on-board safety systems.

An added bonus with the Volvo is that it comes with seven seats. Perfect for royal birthday parties or trips to the bowling alley with the grandparents. Just don’t put the Queen in the back row.

Car for the Royal Baby
Car for the Royal Baby

The aristocratic choice: 2018 Rolls-Royce Phantom

Car for the Royal Baby

Just like the royal family, the new Phantom is British-branded with German engineering on the inside.

It would feel like they hadn’t even left the palace – the new Phantom can be tailored to your exacting specifications. What's that? You want to match the exterior colours to the Black Prince's Ruby on great-granny's crown? No problem. Kate and Wills can even display a work of art on the dashboard thanks to the new Phantom’s 'gallery' feature, and there are plenty of priceless daubings to choose from in the family vault.

The fridge between the rear seats could be used to chill a spot of grandad's Highgrove Cuvée or keep the baby food fresh for when it's needed. This car might be fit for a future king, but the taxpayer might take issue with its £300,000-plus price tag.

Car for the Royal Baby
Car for the Royal Baby

The common choice: Ford S-Max

Car for the Royal Baby

Sometimes it might be nice to get out of the media spotlight for a family outing and so the S-Max is ideal for blending in with the common man.

Seven seats are handy if friends want to come along, or a footman could fold the rearmost set of pews flat to create a spacious corgi loading area. Every S-Max comes with three Isofix child seat mounting points in the middle row, should a fourth royal baby join the fray – a good long-term choice, the Ford. That middle row also slides forward and back so everyone can get comfy.

Prince Phillip famously had a London taxi to drive around the city incognito – going for an S-Max in Vignale trim would be a plusher way to hide in plain sight.

Car for the Royal Baby
Car for the Royal Baby

The eco choice: Tesla Model X

Car for the Royal Baby

With their subjects being encouraged to go green, maybe the royal family should lead by example? The all-electric Model X would do just that.

Seven seats, a 300-mile plus range and zero emissions. What’s not to like? If they go for the Ludicrous model a 0-62mph dash of just 2.9 seconds is a means to never be late for a royal engagement again. Even the close protection units might find it difficult to keep with the Tesla...

Sci-fi inspired 'Falcon Wing' doors open upwards allowing wriggling royals to be easily installed. The Cambridges can even choose from five, six or seven seat variants of the Model X. There's plenty of room on any number of the family piles to install a few discreet solar panels or windmills to keep the car topped up too.

With William being third in line to the throne, he'll want to start thing about the geopolitical ramifications of his every move – being an American car, the Model X could go some way to smoothing relations between the US and Her Majesty's government.

Car for the Royal Baby
Car for the Royal Baby

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Top 5 Cars for the Royal Baby