Of course, the biggest change is a switch from naturally aspirated 2.4-liter V8 engines to turbocharged 1.6-liter V6 powerplants, but that's not the sum total of the shift. The cars' hybrid component are set to play a bigger role, the aerodynamic regulations are changing, as are the exhaust system limitations and a whole mess of other details.
It's enough to make your head spin at 20,000 rpm. Fortunately the BBC has put together this handy little video interviewing the experts and breaking down the changes into layman's terms that even we can understand. Watch the handy three-and-a-half-minute video primer below to get yourself up to speed on next year's F1 regulations.