As a compromise, I recently bought an eBike. That's like a push-bike with a small electric motor for assistance. It takes the pain out of hills and increases my average speed from around 10mph to around 15. I choose to live a couple of miles from where I work, so there is no real need to commute by car.

(It's not very useful as a survival vehicle, though. Better off with a normal push-bike for that.)