MIG31-FIREFOX, which real aircraft is closest

hi all,

for some unexplained reason I watched Clint Eastwood’s Firefox the other day, after seeing it 10+ times already many years ago, and was wondering which real aircraft comes closest to look like the one in the movie.

It is a long shot, but I personaly think perhaps the XB-70 valkerye comes close, if it was a bit smaller? the intakes would be the main major difference.

I’m open for sugestions or ideas.

I’d like the idea of being able to build a model of the firefox, cool, mean and ugly, wow.