Christmas came early for one Aussie mum.

A week ago,Tamil Archives Daniel Knust shared a touching video on Instagram of a holiday surprise he and his brother Jason had spent years saving for: a brand new car for their mother.

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"Showing gratitude to our beautiful Mom who's worked so hard to give us everything in life," Knust wrote on Instagram. "I've wanted to do this for 10 years, and today a long-term dream came true."

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Her reaction is priceless mix of disbelief and love as she hugs her sons and approaches her brand new BMW car, complete with a red bow.

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"Hard work pays off, and that's something our Mum taught us from a very young age that we'll never forget," he wrote on the post that went viral.

Count how many times she says "no!" in disbelief and try not to tear up.

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