The overhead comparison above highlights the key areas of change. Starting from the front, the nose of the car (1) is 20cm longer than in 2016, while the width of the front wing increases from 165cm to 180cm. However, the wing’s new delta shape means the distance between the front tyre and the endplate (2) remains unchanged, as does the endplate size.

The tyres are wider, with tread width up from 24.5 to 30cm at the front (3) and from 32.5 to 40 at the rear (8). This in itself is expected to make cars around three seconds per lap quicker. Meanwhile, the overall width of the car increases from 140cm to 180cm.

Restrictions on floor surface area means that rearward of the front of the cockpit (5) the car cannot be the maximum 180cm wide for its entire length (6), so there must be a cut-out at some point (7). Another proposal prescribes a minimum body width of 160cm at all points, which means the cut-out cannot be more than 10cm deep. Finally, the rear wing (9) is wider - up from 80cm to 95cm - with a bigger overhang.