Opinions please

I have to confess to loving my Traffic Jam bunting. It was one of those designs that worked just as I'd imagined and I enjoy making it. I don't, however, particularly enjoy batch cutting and sewing, and the vehicles are pretty fiddly given the number of windows. So, I've been trying to rejig the pattern to reduce the amount of cutting and sewing involved but I wonder if the quality or design is suffering because of this. Could you give me your opinions please?

This is the bus as I currently make it:

and these is my proposed new design. Please bear in mind that I did this in about two minutes flat, so the zigzagging would be more even:

Thanks for your help!

Edit:

OK, following all your really helpful comments, here's my compromise which I think might do the job. I've taken on Martina's suggestion of the strip of felt under the zigzag and next time I cut some bus shapes, I will take on board the comments from my big sister about making the bus "chubbier":