Sadly, this is not a functional mecha. That's a pity, because it would be awesome to drive around town in a Spider Bug. Web Urbanist has a roundup of fifteen Spider Bugs around the world erected by various artists. This particular one is outside a Jehovah's Witnesses kingdom hall in Oklahoma.
Link -via Dude Craft | Photo by Flickr user meltedplastic used under Creative Commons license
After all, its early nickname was "Beetle" !!
The giveaway is that it has only six legs. Spiders have eight.