You can imagine that Formula 1's cast of designers rarely enter 'holiday mode'. Even with the mandatory summer shutdown, designing an F1 car is pretty all-consuming, and it's fun to imagine engineers spending their time on the beaches of the Costa del Sol sketching new front wing designs in the sand with a stick.
OK, maybe it's not that fun.
But even with the break in proceedings, there's always a collection of new parts on show at Spa-Francorchamps. The run from La Source to Les Combes is flat-out, as is Blanchimont. So, every little bit of drag you can shave from the car is absolutely crucial to any chance of victory in Belgium. Certainly, the low-downforce packages will have been prepared well in advance, but a car's inherent dragginess can still stymie progress on the fast sections.