With just over a month until the 2018 Formula 1 season begins in Australia on March 25, the teams are just about to hit the track for testing with their 2018 machines.

While F1's new owners are making substantial changes to how the sport is presented, the technical rules are relatively stable this year – although there are a couple of notable new regulations that will affect how the cars look.

The most visible change is the introduction of the ‘halo’ cockpit protection device, a wishbone-shaped frame designed to protect drivers from debris. While the halo’s looks have attracted criticism from some, F1 tech chiefs have also moved to tidy up the cars in another area, banning the ‘sharks fins’ and small wings on engine covers.

Check out our gallery featuring all the 2018 cars that have been launched so far. We’ll be updating it with more cars as they are unveiled.