It was suspected to have been made, and now it's confirmed. Here's the single racer Sonic Pull Back n Go car, mint in its box. It is likely to be the exact same one as the one in the 2 pack. The packaging isn't as good though, as it is the 'open style' without plastic so the figure/car can be damaged in the store because it isn't enclosed on all sides. Also, this leaves the diecut part with Sonic/the ring able to be bent more easily too. This one here is nicely preserved. The top text tells you it's pull-back action in several languages.