Co-host Matt LeBlanc and a professional driver performed stunts near the war memorial on Whitehall.
Speaking outside the BBC, Evans described the images as “terrible”.
“They look so disrespectful,” he said before adding that there are “mitigating circumstances. I saw the images this morning for the first time and I felt the same as everybody else.”
In response to a question as to whether it reflected positively on Top Gear, he said: “This is not a good story, no. We’re all mortified by it, so absolutely, 100%, it should not be shown.”
“That particular scene shouldn’t be shown and I think everyone will agree,” he said.
LeBlanc was seen driving around Westminster as shooting took place for the new series of the BBC Two show, which is due to air in May, and photos show large tyre circles left on streets surrounding the war memorial after the ‘donut’ stunt.
Speaking on his BBC Radio 2 show yesterday, Evans said he “completely understood the furore” around the photographs and admitted it had been “unwise” to film anywhere near the Cenotaph.
He said: “It doesn’t matter what actually happened, it doesn’t matter what the circumstances were that could explain this away, what is important about this is what these images look like and they look entirely disrespectful which is not and would never be the intention of the Top Gear team or Matt (LeBlanc).
“On behalf of the Top Gear team and Matt, I would like to apologise unreservedly for what these images seem to portray.”
He added: “Jeremy Clarkson was certainly no saint but I don’t believe he would have ever performed a stunt in such bad taste.”