I think there may be some misinformation or confusion here.
Mars and Venus are two planets in our solar system, and they are not capable of colliding with each other in the sense of a catastrophic impact. The orbits of the planets in our solar system are well-defined and stable, and there is no scientific evidence to suggest that Mars and Venus are on a collision course.
So, to summarize, there is no possibility of Mars and Venus colliding with each other.