Take a look at this.

[alien space marine]

The first link is hilarious! OMG! SUVs on Mars! :rofl2:

The rest are just plain stupid.

In case the morons didnt realize that the reason the colors are different from pathfinder , Is because it is not using the same Res Camera and infact it is alot more advanced then the original pathfinder,If you compared a photograph from the 1980s technology to today the color pallete is slightly different and more defined since we have digital photography.

Another thing is that like the earth, Mars has different enviroments with a variety of soil and mineral deposits , Assuming mars looks exactly the same throughout the planet is ignorant.

As for these SUV sitting around in the pictures , You can find simular optical ilusions out of the middle of the dessert.You can find rocks that look like people or Animals ect.. on earth.