2017 Le Mans will go down in history as "that year when LMP2 car almost won the overall classification". There were serious technical problems for all LMP1 prototypes and it wasn't until 23rd hour until Porsche #2 car, the only remaining Porsche, finally caught up to LMP2 Jackie Chan DC Racing Oreca that was leading the race overall for several hours.
There was lots of drama in GT class as well - particularly in the last few laps, when GT Pro first and second place Corvette and Aston Martin Vantage were running bumper to bumper, until Corvette driver cracked under pressure, made a braking error and a high speed off-track excursion which lead to slow puncture in front tyre.
Despite bringing 3 cars to the LMP1 class, Toyota failed to change the bad fortune they have had in previous years. They were again fastest in qualifying and they are leading WEC championship on points, but I am sure the primary objective for Toyota was Le Mans victory. Last time a Japanese-made car was on top step of Le Mans podium was in 1991, but Toyota have been close to winning on several occasions.