Chosen Solution

Dear, My son’s car toy stop working, I removed all screws but can not remove screw under wheels. Do you maybe know how to remove wheels on this toy? Thank you Picture of toy

You could try to pull the wheels off the axle, or turn them to the right to unscrew them off. If this doesn’t work,I’d recommend trying to separate the blue top plastic from the gray bumper, it may separate in various species and you can access the screws then.