"It's just a big shame.
"At Property Brokers we're a big family. When it's one of your own, it hurts. And the pain is felt by everyone."
The whole Property Brokers team were devastated by Nation's death, and the company's thoughts went out to her family, Whitaker said. "Megan was a valued colleague and popular among the whole team."
Now, all her friends and whānau could do was look out for each other, he said.
Nation's two young sons attended Haumoana School and principal Liz Vanderpump said she was a valued and important member of the school community and would be missed.
Vanderpump said they were thinking of Nation's family.
A friend of Nation, who did not wish to be named, said: "She was an amazing mum and did heaps with her kids."
Police said they extended their deepest sympathies to Nation's family.
The crash is being investigated by the Hawke's Bay serious crash unit.