By Sunday's British Grand Prix, teams will have driven some 1,687 miles (2,715km) in a grueling 17-day
road trip -- the first time the championship has featured three races in as many weekends since its inception in 1950.
Starting at the Circuit Paul Ricard in the south of France, a legion of trucks journeyed up through Italy, to Spielberg's Red Bull Ring for last weekend's Austrian Grand Prix.
From there, whether buoyed by victory or crushed by defeat, the teams negotiated the final leg to Silverstone for the British Grand Prix, via Germany, Belgium and the French port of Calais.
"I would say it's very difficult on two levels, both physically and mentally," Carraro told CNN.
'The absolute limit'
For beyond the spotlight on the 20 drivers, a "race between the races" is going on to ensure F1's monumental traveling circus gets to the destinations on time.
Unlike overseas race weekends, which require the use of five Boeing 747 planes and up to 70 sea freight containers, the transportation of equipment between the three European grands prix has been almost exclusively by land.
All in all, it's estimated some 1,000 vehicles have been deployed for the transport of consumables and equipment from track to track, on behalf of the 20 teams, motorsport's governing body the FIA and the media.
Some of the non-stop stints behind the wheel are considerable -- not least the 986 miles from Austria to Silverstone -- so many of the trucks have been "double-manned" or even "triple-manned" in order to drive through the night.
"It's very complicated, for the guys especially, because it's difficult to give them time off," says Carraro, who manages a team of about 100 people, from mechanics and engineers to marketing, security and catering staff.
"It's not simple to say exactly how many hours per day but generally I would say we'll be on track from 8am to 8pm. Not less than 12 hours per day. So yes, the effort required is a lot."