It depends on what engine is in it and who's driving, my 1966 with a stock 289 has gone 130 mph.
117 mph unmodified
fast
very very very fast
NOT THAT FAST LOL NOT THAT FAST LOL
The first year of the Ford Mustang was 1964
140mph
Its fastest is 160mph
150
130
Depends on what year, and engine installed in the Mustang.
130
120-160