SURPRISED drivers are finding out which cars have a "magic" button ramping up the help on family trips.
TikTok users have revealed how some motors at least can make travel comfier for children and maybe less stressful for parents.
Videos have been shared - and gone viral online - explaining just how you can access a hidden bumper seat in the back for youngsters.
It seems to have taken a while for even long-time owners of such cars to learn what extra support they have in the back.
Manchester-based TikToker Sam Ridgway admitted being taken aback to find he could pump up a bumper seat by pressing down inside his Volvo XC60.
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He shared a 10-second clip showing the trick - complimenting the Swedish auto-maker with the words, "Fair play".
He posted: "Only just discovered my Volvo has a built in bumper seat."
A similar discovery was shared online in eight seconds of footage by Canada's branch of AutoTrader, this time with a Volvo EX90.
Booster seats like these have been recommended for raising up young children, giving better views while keeping them safe.
They are also meant to ensure they fit better within seatbelts suited to their height - but not all car models offer them as integrated features, rather than forcing parents to install their own.
Sam's clip has received more than 93,000 "likes", with over 2,600 for the AutoTrader one.
One response to the Volvo XC60 video said: "I think you just sold the car to me" - while Volvos were described as "super safe cars".
A commenter posted: "I'm at that age now where I saw this and thought, you know what? That is very good, very nice."
Another said, "All cars should have this", and it was also suggested: "Mine does too and I'm in love."
Yet some were unimpressed by the revelation, with one viewer saying: "I thought everyone knew that".
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Others car-makers praised for previously featuring similar bumper seats included Dodge, Mercedes and Volkswagen.
Motorists have meanwhile been shocked to learn of a secret, cash-saving "hack" to boost space in the back of your car, this time Hondas.
Other handy devices taking drivers by surprise include cars' perfume dispensers, boot chutes, hidden umbrellas and "curry hooks".
A guide was given this week on many of the hidden features in cars including buttons which could save people hundreds of pounds.
Suggestions include one for learner drivers worried when parking.
