Yea but how about the noise? It would be tough to hide a big muffler very well.
As much as I prefer the gas setups, I have to agree with the e-bike enthusiasts who point out that if you live in "hostile" territory, it's a lot easier to hide an e-bike than any gas engine. Most police don't know anything about any kinds of motorized bikes (other than they're illegal or not) but everybody
knows what a piston engine sounds like. And making even a small piston engine nearly silent is not an easy task.
Good luck anyway, you scoundrel.....