For the first time in its history, Hot Wheels has invited outside designers to submit concepts for its miniature cars, as a way of celebrating its 40th anniversary. Not looking for just any concept off the street, Hot Wheels invited major automakers to submit designs and the results are, in a word, awesome.

(Click through the jump to read on about the new Hot Wheels or on the thumbnails below to check out the new cars.)

Six car companies have submitted designs that will turned into 1/64 scale cars, and be released with Hot Wheel’s own car in a special set to go on sale this spring. After perusing the gallery of images outlining each automaker’s entry, count us among those excited to snap up the whole series.

What makes this project especially interesting, is the ability to see what sort of sportscar concept an automaker creates when there is virtually no whiff of limitation on the design. Some brand stereotypes seem to come through with the Hot Wheels designs, Ford goes for a retro look, Honda draws on its racing heritage, while Chevrolet riffs on the Corvette.

Which of the 40th anniversary Hot Wheels makes you want to bust out the plastic track? Cast your vote in comments.

+ CNN Money: Real car designers go Hot Wheels