A fellow rally driver expressed the grief of a community last night over the tragedy which claimed the lives of Mr Fisher and two of his adult children.
Mr Andrew Nesbitt said Mr Fisher had been a gentleman. "He was the best sportsman in the world you could ever want to race against, because he loved the competition and as soon as the competition was over he was your friend.
"That's the way true sport is played and that's the way he lived his life and everything he did."
Earlier yesterday, the North's Minister of Culture, Arts and Leisure, Mr Michael McGimpsey, said he was "shocked and saddened" by the accident on Sunday which also left Mr Fisher's wife, Gladys, critically ill and another son injured.
Speaking from the Erne Hospital before Mr Fisher's death late last night, another rally driver, Mr Austin McHale, said the motor sporting world had been devastated at the loss of Mark Fisher (27), who was an up-and-coming rally star.
The family's contribution to the local community, through fundraising and the successful engineering firm which was involved in the completion of Belfast's Waterfront Hall and the Odyssey centre, was also praised yesterday.
Mr Wesley Knox, financial director of Fisher Engineering in Ballinamallard, the family's home village, said the workforce was "absolutely devastated" by the news.
"We are closing for a few days . . . The family are very highly respected in the community. They are our priority. The business is secondary," he said.
Mr Knox said Mark Fisher, who also worked at the factory, was a "60-70 hours-a-week man" who was being moulded for the future leadership of the company.
In Belfast, staff at the chiropodist's where Ms Emma Fisher worked spoke of her larger-than-life personality.
"Customers have been phoning all day to say how much they will miss her," said her former boss, Ms Florence Sharpe.
The North's Environment Minister, Mr Sam Foster, from Co Fermanagh, said the community was in deep shock.
"I am devastated and would like to express from the people of Fermanagh-south Tyrone my sincere sympathy to the family. My heart goes out to them," he said.