See all the classics in the world's largest private car collection

Because in Gosford - an hour's drive north from Sydney - is world's largest private car collection.

And every weekend the Gosford Classic Car Museum, which has had 50,000 visitors through its doors since opened earlier this year on an old Bunnings Warehouse site, plays host to a handful of car clubs with members turning up in their own prized machines.

"Overall it's a tight race between Ford and Holden fans, but we've also had popular turn outs from Mustang Owners NSW, Holden SS Car Club and the Hunter Valley Chrysler Club and some nice examples of English cars turn up like Jaguars, MGs and Aston Martins," said the museum's marketing director Kim Bradley.

So what do they come to see? Well the museum - described on its website as "a hub for automotive fans.. created for car lovers, by car lovers" is an impressive $70 million collection of more than 400 of the rarest and most sought-after vehicles in the world - including one of the most expensive (and fastest) cars ever made, the Ferrari LaFerrari.

Top billing goes to a brace of 35 Ferraris, a super rare one-off, onyx black 1971 Ford XY Falcon GTHO Phase III, and the show-stopping Mercedes 300SL Gullwing.

The museum is also home to a full range of Holdens spanning 30 years, including the most expensive Australian car ever produced, the Holden VE W427, along with Jaguars, four generations of Lamborghinis, 25 obscure Communist cars plus classic motorbikes from around the world.

The figure behind the Gosford Classic Car Museum is BRW rich lister and former used car salesman Tony Denny.

He said while he loves Holdens and his E-type Jaguar convertible he finds it hard to pick a favourite from the lot.

"I see beauty in all cars. Some people love pottery or paintings. I just love cars and can find something I love in just about every car," he said.

Covering an expanse of more than 11,000 square metres, the museum began accumulating classic vehicles in June 2015.

One of the museum's first purchases was a collection of 53 cars from the Rambler Museum of Western Australia that were previously owned by John Ivy.

Many of the cars in the collection, 95 per cent of which were bought in Australia apart from the Soviet and Eastern European vehicles, have amazing stories behind them.

That includes the Aussie Invader III jet car which Roscoe McGlashan piloted his Australian land speed record attempt in 1996.

As well as automotive enthusiasts and car clubs, the museum also attracts visits from Probus clubs, seniors clubs and men's sheds, with a special entry rate for groups of 20 or more.

Ms Bradley said the best time to visit was between 10am and 2pm, and to allow around three hours to walk around. The museum is wheelchair accessible and there are plenty of chairs and seating areas around the museum.