NKOK didn't stop with remote control RC racers, they also have these All Stars Racing Light & Sound Racers. Here's Knuckles in the Land Breaker, which has working headlights, makes noise, and moves. It's not radio control, so it likely just goes forward. The modeling for the Landbreaker looks a bit off/simplified somehow here. How big are these?

The Sonic in Speed Star racer is similar to the Knuckles one. His car is slightly simplified and the box lists (vaguely) the features. The whole front is open too, so you can touch it & try it before you buy it.