Kevin Magnussen emded up P17 for Haas ahead of the Sauber pair of Pascal Wehrlein and Marcus Ericsson, both of whom failed to capitalize on the wet conditions to make up for the team's performance disadvantage.
The FIA previously tried out a metal frame known as the "halo", which is intended to stop loose wheels - or other flying debris - hitting a driver's head, but it was criticized by some drivers on aesthetic grounds.
Grosjean of Haas had claimed he was blocked and had lost three-tenths of a second, adding that Hamilton had made no effort to move aside. A number of venues have cut ties with F1 over the course of the sport's life, just look at the difficulties with events like the German, French, and American GPs, not to mention more recent ones like the Korean GP.
However, Red Bull boss Christian Horner thinks Wolff and Vettel would have been talking business at the birthday party. "I had no indication from the team that there was anyone coming and I think I just got away without blocking him".
Valtteri Bottas has to be at the top of my talking points.
Despite positive comments regarding the look of the newest cockpit safety device, the subject of whether F1 should need such a device, is still very much up for debate.
He added: "We had a run planned with it, but I didn't like it so I took it off".More news: Wimbledon 2017: Friday London Schedule and Bracket Predictions
Some 100,000 spectators watched the F1 Live event in London, with all the drivers apart from Hamilton putting on a tyre-smoking display.
The material is intended to give a different type of coverage from that seen via more traditional broadcasters.
Ricciardo was quickly shuffled down the timing screens, ending up 20th slowest, but is current due to start one place higher despite his five-place grid penalty for changing a gearbox because of Alonso's drop.
As the circuit dried, the times tumbled with wild movements of positions.
Despite the above graph showing Bottas with the quickest overall long run average, Kimi Raikkonen's substantially longer run was a mere 0.130s behind his countryman. Probably two laps of excitement at the top, four laps at the end and a lot of nothing in between.
"Sebastian is a great character", he said.
Anyway, the correlation of the average lap time on the softs was considerably different to that of the supersofts.