A family spokesperson posted a tribute to the teenager and said the aroha and support "pouring through" was "appreciated muchly".
"Eden our boy. Our hearts are shattered," she wrote.
"You left a mamae that will forever be with us.
"You also left a mark on everyone you met, with your humour and cheekiness and a laugh so contagious, a personality so big.
"You were always making people smile and laugh. You are so loved."
Another relative said Eden was the youngest of 13 siblings.
"You will be missed so much my brother, there's a lot of broken hearts ... we wish you were still here with us, you were taken from us far too early," he said.
"You will always be in our hearts brother ... I'm hurting so much right now and so will a lot of the family."
"You had everything to live for," said another relative.
"We love you. I'm shattered. I'm still in disbelief ... It's still unreal."
Police confirmed yesterday she had since passed away as a result of her injuries.
Assistant Commissioner Bruce O'Brien said yesterday the road toll of 17 for the holiday period was disappointing as many fatalities "could have been avoided".
In the same period last year, 11 people died and just four the previous year.
O'Brien said whānau and friends who lost loved ones in crashes should have been enjoying this holiday period with them, not planning their tangi or funerals.
"The impact on whānau, friends and communities cannot be measured when someone is killed in a road crash," he said.
"It's also incredibly frustrating for police to see people losing their lives in completely preventable incidents."
O'Brien said police would continue to have a visible presence on our roads this summer, taking enforcement action where necessary.
"But ultimately it is drivers who have the responsibility to keep themselves, their passengers and other road users safe," he said.
"We need you to do your part, too."
The highest number of deaths on New Zealand's roads during the Christmas and New Year holiday period in recent times was during the 2016/17 season, when 19 people lost their lives.