LEGO Batman V Superman Batmobile, The Bat, And Optimus Prime B Models

Here are my MOC alternate builds of the LEGO Technic Batcycle, LEGO Technic Mercedes F1, and LEGO Icons Optimus Prime sets. Insructions can be found at the link below.
rebrickable.com/users/Creatio...

[@Smil33-hd3tk]

LUV UR BUILDS COULD U TRY DO AN ALT BUILD FOR THE VESPA 125

[@andreataglia5264]

🎉🎉🎉🎉

[@jbradfield659]

How do you get your ideas, like what's your thought process going into it cuz Wow, you do a great job on all of them

[@TuckerDale89]

I used your plans for the 1989 Batmobile for the new movie but my wheels roll in opposite directions so that it can’t even roll any thoughts as to why? Not a big deal just curious at what I did wrong

[@AndrewMalkin]

I haven't built that one, but is there a differential? My only thought is that you might have put that in wrong. A differential will make them turn in opposite directions when off the ground, but they should roll together when on the ground. It might also be binding up somewhere near the engine or driveshaft.