Robert Downey Jr. and his 11-year-old son Exton star in a new trailer for his HBO Max reality show Downey’s Dream Cars.

The 58-year-old Hollywood heartthrob is seen early on showing off his formidable collection of vintage automobiles largely from the 1960s and 1970s.

Now, with the help of professionals, he has embarked on the task of lovingly restoring them in an eco-friendly manner – and the process will unfold onscreen.

His plucky young son is on hand to cut the beloved movie star down to size whenever his ego begins to run away with him.

As Robert brags about being a ‘gearhead’ and a ‘grease monkey,’ Exton slyly turns to the camera and asks: ‘Are we sure he’s the right guy to be hosting this show?’

Incoming: Robert Downey Jr. and his adorable 11-year-old son Exton star in a new trailer for his HBO Max reality show Downey’s Dream Cars

Swank: The 58-year-old Hollywood heartthrob is seen early on showing off his formidable collection of vintage automobiles largely from the 1960s and 1970s

Backchat: His plucky young son is on hand to cut the beloved movie star down to size whenever his ego begins to run away with him

Goofing around: As Robert brags about being a ‘gearhead’ and a ‘grease monkey,’ Exton slyly turns to the camera and asks: ‘Are we sure he’s the right guy to be hosting this show?’

Robert takes the jabs with good humor, melting into laughter when his little pride and joy calls his compere abilities into question.

Near the start of the trailer he introduces his audience to his longtime love of old cars, particularly the ones made during his 𝘤𝘩𝘪𝘭𝘥hood.

‘The cars of the ’60s and ’70s just make your heart beat a little faster,’ he gushed. ‘As a red-blooded American boy, I wanted in.’

While his movie career got off to a turbulent start, derailed at one point by his addictions, he launched a galloping comeback and earned a fortune.

He has now ‘amassed a collection’ of cars, and as ‘an idea man,’ he has now ‘enlisted a team of folks to restore my cars in ways that are less harmful to the planet.’

Robert’s eco-friendly idea of restoration is to convert the cars into being either hybrid or possibly in some cases entirely electric.

One of the professionals marvels that a particular vehicle is ‘almost too nice to mess with,’ but Robert is determined that he ‘can’t leave it alone.’

However before he gets carried away with his perception of his own expertise, little Exton arrives to bring him back to earth.

The goal: Now, with the help of professionals, he has embarked on the task of lovingly restoring them in an eco-friendly manner – and the process will unfold onscreen

Conscious: He has now ‘amassed a collection’ of cars, and as ‘an idea man,’ he has now ‘enlisted a team of folks to restore my cars in ways that are less harmful to the planet’

Looking ahead: Robert’s eco-friendly idea of restoration is to convert the cars into being either hybrid or possibly in some cases entirely electric

Hopes and dreams: ‘The cars of the ’60s and ’70s just make your heart beat a little faster,’ he gushed, adding: ‘As a red-blooded American boy, I wanted in’

Audiovisual guide: As the pair sit down to oysters together, Robert begins using the food on the table to try and demonstrate the work he is having done

Proud: ‘This is a clue, you’ll never guess – ‘ Robert starts, holding up a French fry, but Exton is way ahead of him, saying: ‘It’s a biodiesel conversion’

Close enough: After a meeting, the seller shoots a confessional where he is asked if he recognizes his prospective client and replies with a laugh: ‘Yes, Rodney’

In the offing: Robert, who shares Exton with his movie producer wife Susan, will see the premiere of his new show on HBO Max June 22

As the pair sit down to oysters together, Robert begins using the food on the table to try and demonstrate the work he is having done.

‘This is a clue, you’ll never guess – ‘ Robert starts, holding up a French fry, but Exton is way ahead of him, saying: ‘It’s a biodiesel conversion.’

Exton is not the only person to be unimpressed, as becomes clear when the Iron Man heartthrob sets off to buy a vintage car in person.

Despite the fact that any seller who sees a rich famous film star will be unwilling to come down on the price, Robert insists on effecting the transaction himself.

After the meeting, the seller shoots a confessional where he is asked if he recognizes his prospective client and replies with a laugh: ‘Yes, Rodney.’

Robert, who shares Exton with his movie producer wife Susan, will see the premiere of his new show on HBO Max June 22.