There are a few changes to last year's car with Ferrari retaining the front and rear pull-rod suspension, while the rear of this year's model is narrower and more tapered.

CNN: Ferrari ready for Red Bull fight

The Red Bull is the only car to incorporate a pull-rod rear suspension, which is incorporated into their gearbox design and means there is little room at the back of the car to add a split-level diffuser.

BBC: Red Bull considering new diffuser

The other, the responder, could then choose to pull on a rod, bringing the tray close enough for both to get the raisins, one pot for each.

ECONOMIST: Evolution