Of calories and flying cars
Turning the heating down by 1 degC in the winter will burn more calories than any reasonnable amount of exercise while saving a bit of cash. Win-win!
The thing with flying cars is that while the concept might sound appealing, the idear really is appaling. Most people already fail at navigating their car properly in 2-D, imagine the disaster if flying cars ever bacame a thing. Thankfully it's ulikely to happen, because no-one in their right mind actually wants one. It's expensive, cubersome and extremely impractical. People who want to fly for fun can get an ultralight at a fraction of the price, and people who want to skip jams can get a 2-wheeled death machine at a (very) small fraction of the price and with less danger to themselves and others. Plus, these actually work.