Hypermiling in a gas car is my driving game.
When I drive an ICE, I drive like I don't have a brake pedal because it's an evil device that converts cash into heat and brake dust. The light ahead turned red? Take the foot off the gas. No sense maintaining speed if I'm just going to stop. Driving through a large dip? Let the car speed up as you go down so you'll give yourself momentum to climb out.
It blows my mind when I see someone driving up hill, notice they're going too fast, and they hit the brakes rather than just let gravity do the job.
My previous car was a Subaru BRZ, stickered at 24 mpg city, 30 mpg highway. I averaged 33 mpg. I didn't even drive slow. I just made sure that speed was never wasted unnecessarily.