Among the dead were brothers Ellis and Elliott Kimmitt, aged just 12 and 15, and Darnell Harte, 15. "As a family we have already been through so much".
"Hope now you're at some peace".
'But I promise you our kids will be looked after and will always remember their daddy.
Some of those involved in the crash are understood to have attended the nearby Carr Manor Community School.
"We appreciate the respect for the community's grief and privacy at this time".
Father-of-two Anthoney Armour, 28, whose partner is pregnant with a third child, also died.
Friends and family of Anthoney said they had been left with a hole in their hearts, writing: "The devastation you've left behind is just beyond words".
Image The car has been removed and a large scar can be seen on the tree
A heartbreaking note was also written in memory of victim Robbie with a friend describing him as the "funniest most trustworthy guy".
Speaking at a press conference at the scene on Stonegate Road near Meanwood Supt Matt Davison, who heads neighbourhood policing for the Leeds District, said: "I understand that emotions are running high in the community and we urge people to support each other at what is a really hard time and to support us with our investigation so that we get the questions answered that people want answering". Investigators say it is not yet clear whether all seven individuals were travelling in the vehicle.
Two 15-year-old boys are being held in custody on suspicion of causing death by unsafe driving.
Residents living on the road described hearing a "loud bang" when the crash happened at 9.45pm on Saturday night.
"I would not like to compare it to anything else I have seen".
The auto has been removed from the scene and a large scar can be seen on the tree, which is around 150m behind a police cordon.
DCI Griffiths said: "We are not looking for anyone else at the moment, it's obviously still an ongoing investigation". It was just a crumpled mess'.