These are the mini racers. They look almost the same as the larger figures above, but in this case the figure and vehicle are fused together, and they are not poseable. (the heads don't turn, as is sometimes common with figure/vehicle fusion toys. These are less expensive and come on the bubble card seen at left, rather than in a box. They released simultaneously with the above figure/vehicle combos. The box presentation is once again really nice here, with lots of attractive colors, and a cool engine block shaped bubble. It helps prevent bootlegging, and presents the car in an easy to see format that should be pretty safe in the stores. 

Photos courtesy of Taaron

 The Sonic car mini racer is nearly identical to the larger one, except that the 'vents' in the back are inexplicably switched to red here, where they were silver tone before. Otherwise, the tail lights are still textured, and everything that was painted on the larger one, appears here as well. Sonic looks proportional in his car, and the car itself is that solid blue color, it's not covered in chip-able paint. His tires do not have traction. Also note that despite some (early claims) these are not pull-back-n-go racers, they just roll easily. He shows the same good attention to figure detail as the Shadow & the Amy. 

This is how the vehicles relate in size, to one another. By far, Shadow's is the smallest, and his is propped up by the cars. Each of the mini racers is about 3 inches long, max and under 2 inches high, so they really are micro.

Discovered by BleachXVizard, taken by ActionFigs

Photos courtesy of Taaron