The 2019 rule changes which may slipped under the radar - part 1

Aerodynamic changes are grabbing the bulk of the attention for the upcoming season, but there's plenty of changes which may have slipped under the radar.

Both the front and rear wings are adjusted with the hope it will tackle overtaking troubles. The naming system has also been altered to try and make it easier for casual fans to understand.

However, there are a few more noteworthy changes that haven't been drawn upon.

Overtaking after a safety car has returned to the pits will now only be allowed once the leader crosses the start/finish straight rather than the first safety car line, usually placed before the final turn.

Teams must now keep auxiliary oil tanks empty during all sessions in qualifying. Extra oil burning, which could give teams a boost, is no longer permitted.

The 60-person team-personnel remains the same. However, for six occasions during the year, teams will be allowed to bring in trainee personnel. Each junior man can work over two Grands Prix.

The massive grid penalties which have been slapped on F1 teams and drivers have seemed strange, silly and annoying for some time.

Last season, if more than one driver picked up a penalty, there would be a scramble to the pit traffic light as the first to enter the track qualified higher.

This year though, it's more sensible. Those with a penalty and sent to the back of the grid will be forced to perform well in qualifying. The order will be determined by who's fastest on Saturday.

The driver, along with his seat, will be weighed at the start of the season and this total must reach a minimum of 80kg. If that limit isn't reached, the ballast can be fitted inside the cockpit area.

The total minimum weight limit this season is 743kg, but that no longer includes the drivers' weight. Before, it was obviously easier for lighter drivers.