Summary
Hamilton fastest in rain-hit second practice
Merhi crashes at tunnel exit, several cars off track
Get involved #bbcf1: how would you make F1 more exciting?
Hamilton fastest in first practice, Verstappen second
Live Reporting
Gary Rose
Postpublished at 12:38 British Summer Time 21 May 2015
Chasing the perfect weekendpublished at 12:36 British Summer Time 21 May 2015
12:36 BST 21 May 2015It will have been a pleasing first practice session for Lewis Hamilton, with everything having gone swimmingly for the reigning world champion.
If there is one place Hamilton is desperate to have a "perfect" race, it is Monaco, as he explains in his latest BBC column.
"Whatever I feel about my abilities, somehow I have never executed a perfect weekend in Monaco," he says. "Will I ever have one of those perfect weekends here? I don't know, but I am going to give it everything I have got over these next four days."
Hamilton also talks about his new Mercedes contract, and Ayrton Senna in his latest column which, as ever, is well worth a read.
Postpublished at 12:35 British Summer Time 21 May 2015
12:35 BST 21 May 2015Andrew Benson
Chief F1 writer in Monaco"The talk between the sessions over a chilly lunch time in Monaco has been all about two men - Lewis Hamilton and Max Verstappen. Both had striking sessions this morning. Hamilton was absolutely on it from the minute he hit the track, as if he was trying to send a message to team-mate Nico Rosberg. It seemed to work. Rosberg hit the barrier at Tabac trying to match Hamilton's time, and when the German got to within a couple of tenths, Hamilton knocked another second off his best.
"Meanwhile, Verstappen continues to prove the hype is real. To be second fastest on his first ever experience of Monaco, regardless of fuel loads, is making quite a statement."
Attacking to the Max?published at 12:31 British Summer Time 21 May 2015
12:31 BST 21 May 2015"You can't just attack it in the first free practice session, you need to build up to it gradually."
That is what Max Verstappen said before producing a stand-out performance in first practice for the Monaco GP this morning, finishing second fastest to Lewis Hamilton.
If that is 17-year-old not attacking, what does the rest of the weekend have in store for the impressive rookie?
Postpublished at 10:51 British Summer Time 21 May 2015
10:51 BST 21 May 2015Smooth sailing for Lewis Hamilton so far in Monaco. Very early days though.
We are going to put the brakes on this live text commentary for a short while but we will back up and running at 12:30 BST for second practice, which gets under way at 13:00 BST.
In the meantime, have a read of Andrew Benson's report and we'll see you after lunch! Au revoir for now.
Postpublished at 10:43 British Summer Time 21 May 2015
10:43 BST 21 May 2015Postpublished at 10:41 British Summer Time 21 May 2015
10:41 BST 21 May 2015Allan McNish
BBC Radio 5 live analyst in Monaco"Max looked very good right from the off. I watched him at the second part of the swimming pool section and he was very aggressive with his steering but also very precise. The kid can drive, clearly, but he has good confidence in the Toro Rosso too."
Hamilton on top, Verstappen shinespublished at 10:40 British Summer Time 21 May 2015
10:40 BST 21 May 2015So Lewis Hamilton tops the timesheet for first practice for the Monaco Grand Prix, as he did last year although his time of 1:18.750 is half a second slower than his 2014 effort, suggesting he has more in hand.
However, the standout performer has to be Max Verstappen who, in his first foray on the Monaco circuit, clocked the second fastest time, just 0.149 off Hamilton's benchmark.
FP1 RESULTpublished at 10:35 British Summer Time 21 May 2015
10:35 BST 21 May 20151) Lewis Hamilton 2) Max Verstappen 3) Daniel Ricciardo 4) Sebastian Vettel 5) Carlos Sainz 6) Pastor Maldonado 7) Daniil Kvyat 8) Kimi Raikkonen 9) Nico Rosberg 10) Felipe Massa
11) Fernando Alonso 12) Jenson Button 13) Romain Grosjean 14) Sergio Perez 15) Nico Hulkenberg 16) Felipe Nasr 17) Valtteri Bottas 18) Marcus Ericsson 19) Will Stevens 20) Roberto Merhi
Chequered flagpublished at 10:32 British Summer Time 21 May 2015
10:32 BST 21 May 2015LEWIS HAMILTON FINISHES FASTEST IN FIRST PRACTICE FOR THE MONACO GRAND PRIX.
Chequered flagpublished at 10:30 British Summer Time 21 May 2015
10:30 BST 21 May 2015Max Verstappen leaps up to P2 as the chequered flag is waved.
Get involved #bbcf1published at 10:29 British Summer Time 21 May 2015
10:29 BST 21 May 2015Joseph Murphy Every driver has to drive each of the other team cars at least once. The driver's championship and team championship are separate.
Paul Beverley F1 teams should be made to drop their lowest scoring driver each season, you'd be guaranteed a fight between team-mates then.
Chris Hopgood Have missiles and banana skins like Mario kart?
Shaun Hughes Let the engineers go nuts. Only rules that cars have four wheels, one driver and a set size engine. Anything else goes!
Postpublished at 10:27 British Summer Time 21 May 2015
10:27 BST 21 May 2015The traffic may be of no bother for Max Verstappen, but it is getting under the skin of Daniil Kvyat, whose message over team radio is bleeped as he uses a bit of colourful language during a complaint of traffic behind him. "Calm down," he is told over team radio.
Memorable Monaco momentspublished at 10:25 British Summer Time 21 May 2015
10:25 BST 21 May 2015Sir Stirling Moss has his name etched in Monaco history. He became the first British winner of the race in 1956 but produced arguably one of the greatest drives of his career on the street circuit five years later.
He was in an ageing Lotus but successfully managed to hold off a far superior trio of Ferraris with a stunning drive round the twisty streets to take victory in the opening race of the 1961 season.
That achieved with overheating problems with his Lotus - an issue managed by Moss by removing the sidepanels from his car and dousing himself in water.
Lotus via Twitterpublished at 10:23 British Summer Time 21 May 2015
10:23 BST 21 May 2015"Ready... What the...! THERE'S SOMEONE ON OUR BALCONY"
Postpublished at 10:23 British Summer Time 21 May 2015
10:23 BST 21 May 2015With just over eight minutes to go, everyone is out on the circuit except for Fernando Alonso.
Max Verstappen is unperturbed by a bit of traffic as he climbs back into P3 with a 1:19.365. The 17-year-old is just six tenths off Lewis Hamilton's time.
Postpublished at 10:20 British Summer Time 21 May 2015
10:20 BST 21 May 2015Formula 1.com: It's the Force India cars who are burning up the track in FP1.
Postpublished at 10:19 British Summer Time 21 May 2015
10:19 BST 21 May 2015Manor: Our in-garage tree seems to have caught your attention, so here's another couple of branches for you...
Postpublished at 10:17 British Summer Time 21 May 2015
10:17 BST 21 May 2015So far so good for Felipe Massa and Fernando Alonso, with the former fifth fastest and the latter sixth fastest.
There's barely anything between Massa and Nico Rosberg, who is fourth fastest, 0.004s to be exact. All looking good for Williams in Monaco.
Postpublished at 10:14 British Summer Time 21 May 2015
10:14 BST 21 May 2015Into the last 15 minutes of this session and it has been a trouble free one so far for Pastor Maldonado. He has been ticking along nicely, minding his own business, and has the 14th best time so far with 1:21.267, 2.5s down on Lewis Hamilton's benchmark.