Hot Wheels NASA Mars Rover Sojourner
Believe it or not, this is actually a Hot Wheels release. It came out in a 1997 NASA Action Pack which included this Mars Rover Sojourner and two other pieces. It's been sitting on top of my computer monitor for years and just today I learned it was released by Hot Wheels. They've got another rover coming out sometime this year, the Mars Rover Curiosity, so I sure hope I can find that one as well.