Release the gas pedal early to drive economically.

Modern cars usually have automatic fuel cut. By releasing the gas pedal but keeping the car in gear, the fuel consumption will be completely cut while the car brakes on the gear. You get a gentle deceleration towards the roundabout, while avoiding unnecessary fuel consumption.

Electric cars convert kinetic energy into battery power when you release the gas. Be careful, if regeneration is turned off, the car may roll quickly and you will need to step on the brake to stop in time.