From Montreal memories to salary statements, here are a few of the storylines you might have missed last weekend...
Happy Hunting Ground
The Canadian GP has been a memorable race for Mercedes-AMG Petronas Motorsport's driving talent, both past and present.
For Lewis, the Circuit Gilles Villeneuve was the scene of his first Grand Prix victory, back in 2007, something he described as "the best weekend of my life at that time."
Not content with that, Lewis also took victory in 2010, '12, '15, '16 and '17, equalling Michael Schumacher's six wins and also equalling the great German's six pole positions.
Valtteri also first appeared large on the F1 radar when he qualified a superb third for Williams - behind multiple Champion Sebastian Vettel and Lewis - on a wet track in 2013, since when it has always been one of his favourite circuits. In line with that, this year he became just the second team mate ever to out-qualify Lewis in Montreal.
Non-executive chairman Niki Lauda also had some seismic career moments in Canada. Four years before Circuit Gilles Villeneuve first hosted the race, Niki was in his first season with Ferrari and his first year in a Championship-contending car.
At Mosport Park in the season's penultimate race, he qualified on the front row, took the lead at the start and led for 67 of the race's 80 laps before skating off on an un-flagged oil spillage, ending his Championship hopes. He would win two world titles in the following three seasons.
Heading to the Circuit Gilles-Villeneuve in '79, Niki had finished just two of the previous 13 races. After a cold and soggy opening day of practice, Niki declared that he was "fed up with driving around in circles," announced his immediate retirement, packed up his bag and headed off to continue his DC10 pilot training.
He was back with McLaren at the beginning of '82 and won a third world title two years later - the year before Lewis was born...
Lewis Strikes a Blow for Women
The Forbes 'World's 100 best-paid athletes list' may not speak gospel truth, but is always the subject of much debate.
Topping the 2018 list - which takes into account yearly salary and endorsement deals - with a whopping $285m to his name, was boxer Floyd Mayweather, who earned much of that through a percentage of pay-per-view receipts following his fight against Ultimate Fighting Championship ace, Conor McGregor.
By way of comparison, footballer Lionel Messi ranked second with $111m, tennis player Roger Federer was seventh on $77.2m, and Lewis ranked 12th with $51m. Golfer Tiger Woods was at No18 on $43.3m, two places ahead of Sebastian Vettel on $42.3m. Boxer Anthony Joshua ranked 25th with $39m, while Fernando Alonso came in at No 39 ($33m).
One controversial aspect was the absence of one single woman for the first time in eight years, from a list regularly frequented by tennis players Serena Williams and Maria Sharapova. Serena, a friend of Lewis, has of course recently taken time out to have a baby, while Sharapova has not long returned following a ban.
Asked what he thought of the development, Lewis replied: "Well there's no women drivers, so F1 hasn't anything to do with it! But it just shows how behind we are in the world. There's no reason why a woman should not be able to earn what men earn. Serena is in the top three greatest athletes of all time - above a lot, if not all, of the people who are on that list.
"It's a big question as to why. Women rule the world, so I don't understand. It just shows that we are in the Stone Age and it needs to change When will it change? I don't know. That's still the fight we have in society today."
No Forced Manoeuvres
Something of a storm in a teacup brewed after Force India driver Esteban Ocon slowed to let Lewis past in the Monaco GP after car No.44 had made its pit stop.
The Force India team uses Mercedes engines and, post-race, a number of teams contacted the FIA claiming that there had been collusion between the two teams - something banned by the regulations. An internal FIA investigation, however, found that there was no need to pursue the matter further.
Although Esteban did slow to let Lewis by - but not because the team was asked to do so, as Force India's chief operating officer Otmar Szafnauer explained: "We were running our own race and it wasn't against Lewis. Alonso had pitted and was trying to undercut us and we didn't want Esteban to lose any time with Lewis."
Toto added: "I don't really understand the fuss. Lewis was on fresh tyres and Ocon was racing other cars. If you fight you lose a lot of time, particularly around Monaco having to look in your mirrors all the time -- more than 2s per lap. I think what happened was a normal situation that we've seen many times in the past and will in the future."
The One That Got Away?
In the final analysis, Valtteri' second place and Lewis' fifth in Canada was not what the team was shooting at. But, in Lewis' words, they might be grateful in 10 races time that his fifth place was "not eighth, or even a DNF."
The first plan to go awry was bringing the upgraded new specification power unit to Montreal, a power circuit where it is likely to have been a decent gain. Quality issues discovered on the final dyno run put paid to that.
How much of a step it would have been was impossible to know. Maybe a tenth of a second per lap? Maybe a bit more?
As Valtteri pointed out post-race: "We saw yesterday that we lost the pole by nine hundredths and if you calculate today a tenth every lap for 70 laps, it's seven seconds and we finished 7.3s behind...
"It's not big things but Ferrari were definitely quicker today and had a small margin that they could use to save fuel and control the race. We had equally-matched race pace with Red Bull, maybe a bit quicker. We came knowing it would be a good track for us and hoping to fight for the win, but we didn't, which shows how tough the development race is at the moment. We are definitely not the favourites going to the French GP, and that's a fact."
Keeping Max Verstappen (starting on the softer HyperSoft Pirelli) behind on lap one, was key to Valtteri's second place.
"He was on clean side of the track, definitely had a better start than I did and was on the inside. My only option was to carry speed, brake late to get the inside for Turn 2, which I managed to do even though we touched wheels."
Lewis, meanwhile, had problems with power drop-outs, practically from the start. How big an issue was that?
"Huge! I thought the engine was going to blow. I got out to Turn 2 on the first lap and the power started dropping out. There was lots of hesitations. I'm sure in the next couple of days it will get more painful. Ultimately it was a poor weekend but it could have been a DNF."
A chassis-related problem was causing the engine to overheat and the team brought Hamilton in as soon as he had a workable pit window, after just 16 of the race's 70 laps. At the stop the team opened up some cooling louvres close to the headrest and richened up the fuel mixture to try to improve engine cooling. Daniel Ricciardo, meanwhile, pitted on the next lap and was able to demote Lewis from fourth to fifth.
"I had the whole power unit not working correctly," Lewis elaborated, 'gearshifts -- everything behind me basically. I was driving 120%. I was taking risks today but I couldn't get close enough and I was down on power. I was pushing so hard. Even on the second to last lap I had some big dips in power."
The other element that may have improved the team's weekend was giving the drivers more time on the HyperSoft Pirelli.
"There's not one single reason why we haven't performed like we should have but all of us are aware that based on the findings of (last year's) Abu Dhabi (tyre test) we were guided in the wrong direction," Toto said. "Having had one or two more sets to accommodate the drivers better would maybe have helped us secure qualifying. But I say 'maybe' because we don't know. But I guess putting Lewis on the Hyper on Saturday morning for the first time, was probably too late."
With Canadian winner Sebastian Vettel retaking the lead in the Drivers' Championship by a single point and Ferrari closing Mercedes' lead in the Constructors' Championship to 17 points, Toto summarised: "We came to Montreal expecting the car to be really strong and we are leaving seeing that we haven't been where we should have been. This is - and we have had it in the past - a major wake-up call for every member of the team. Everybody needs to assess how to improve performance in order to optimise those marginal gains. Because the marginal gains will make all the difference."