“And the duo will probably rack up a lot more space miles before they're done. The Roadster will eventually barrel into either Venus or Earth
, likely within the next few tens of millions of years”
I just love that Musk did this, it is so cool and humorous!
Unfortunately it will never make it to impact Venus or Earth, at least in recognizable form. The body, due to it’s carbon fiber construction will has started being dissolved by the Sun since it was launched and if it hasn’t started breaking apart it will soon and will be gone within years. Ditto for Starman and the tires and everything else carbon based on it.
The only thing that will survive is the aluminum frame and that too will subject to erosion from micrometeors.
It seems, at best, only a handful of rubble will survive to the end.