Mr Martin, a keen surfer and fisherman from Stanwell Park, was in the passenger seat of a southbound Nissan Skyline that slammed at speed into the back of a tipper truck parked on Walker Street, about 2am Sunday. 

The force of the crash pushed the truck uphill, into a power pole. 

Mr Martin died at the scene. 

The driver, identified by 7 News as Lachlan Scipione, 20, suffered multiple injuries and was airlifted to St George hospital.

He remained at the hospital in a critical condition, as at Sunday afternoon.

His family has requested no further updates be made public. 

Officers from Crash Investigation Unit attended to investigate the circumstances surrounding the crash, which occurred on a straight, uphill stretch of Walker Street which is zoned 50km/h. 

Meantime, friends have taken to social media to pay tribute to the “amazing, funny and talented” Mr Martin. 

“It's almost ironic that you kept us all grounded and now you're the one flying high,” Elliot Turner wrote.

“We have been truly blessed to know someone like you, wholeheartedly one of the best people I have ever met ... Life is precious but you lived it to its full potential. It's hard to put into words how many people you have touched you truly were one of a kind and an inspiration to everyone to keep on going when times were tough. I say this with love and a broken heart but, rest easy.” 

Adam Thompson wrote: “You were an absolute legend Reuben Martin. You always made me laugh while going on surfing trips with your family. Love you Brother. Forever in our hearts. RIP.” 

“So saddened to hear about this terrible news,” wrote Britnee Tyers. “You were such an amazing , funny and talented person … you will never be forgotten my friend.” 

Reubs, we loved you so much having known you all your Life, you Light up a room with your gorgeous smile, not a day will go by that we will not think & thankyou for been a part of our Lives, RIP in Eternity with our Lord Jesus, Until we meet again, Lv, sally, andrew, ethan, Jacob & breezy. Sally anne,andrew,ethan,Jacob & breezy stein Loftus

very sad, hope your family are comforted knowing how loved you are Suz Petrie, Helensburgh

So very sad. My condolences go out to family and friends. Suzy, Thirroul

rest easy legend Never thought a humble and funny lad like you would die that young Hunter, Austinmer

Rest easy you legend, keep the good vibes going up there Aj, Stanwell Park

RIP young man Taken way too soon Hearts broken for you and your family esp your mum Being a mum I just cant imagine the pain <3 M. Seebacher, Menai

R♡I♡P♡••••••• M. Hanan, Berkley Vale

Rest In Paradise Reuben. Thinking of all your Family & Friends xo Ness, Helensburgh

Our heartfelt condolences from the family of Matthew Young Diane Young, Maclean

I have such fond memories of you at school Reuben, with your quick wit and a smile and presence that lit up the room. You touched so many people with your honesty and faithful friendship. I cannot begin to imagine the pain and sorrow your mum, dad and family are suffering and no words can take away their pain. May the Lord Jesus bring you His comfort in your grief Paul and Leanne. Deb Bezic, Bargo

What a beautiful soul you were Reuben Martin , loved how you always hung Jarred Coles everywhere , loved how you spoke to us adults with respect and interest .My heart aches for Reuben's family and friends loss. Elizabeth Sweet, Coffs Harbour /Stanwell Parker

Taken too early 💕 RIP Reuben Melissa, Helensburgh

Your radiant smile lit up the room and your heart radiated Gods love rest safely in His arms as we will hold you in our hearts. MJ, Roy, Angus, Barry, and Jess, Illawarra

You will be missed,i'm sure everyone misses you. Bridget, Yowie Bay

R.I.P Reuben, u will be missed by many. Tiarne, Sutherland

RIP poor darlin. Laura, Cronulla

R.I.P Artim Saliu, Berkeley

Reuben will be sadly missed, he was a great kid. John C2North, Randwick