In the new V6 regulations the number of engines and related components that can be used by each driver during the season is heavily restricted. Originally, the limit this year was going to be a crippling 4 units of each type for the whole season although it now looks like that will be increased back up to 5 after the struggles of many of the manufacturers in Australia. There was a thread to keep track of how many components each driver had used last year, and I'll try to keep this thread updated for this season as well. The various components that come under the restrictions are: ICE: Internal Combustion Engine (the V6 engine itself). TC: The Turbo Charger MGU-K: Motor Generator Unit Kinetic - energy recovery from the engine under braking (i.e. KERS). MGU-H: Motor Generator Unit Heat - energy recovery from the turbo. ES: Energy Store - the batteries. CE: Control electronics. The FIA provide technical documents with a list of the number of components used by each driver at the start of each race weekend. Here's the status going in to Malaysian grand prix: As is well documented elsewhere, Renault had a difficult start and Ricciardo's already had to use a second unit of everything except the batteries and control electronics. If the optimists at Renault were thinking "well at least the batteries and control electronics are ok", then they're out of luck because Verstappen had to replace those which makes a clean sweep of 2nd units used for the Renault powered cars. I mentioned this under the Hamilton thread yesterday but it slipped under the radar during the weekend in Australia that Lewis had to replace the control electronics on his car. Not the ideal start to the season but it shouldn't be a major issue as many of the Mercedes powered teams got to Abu Dhabi last year having only used 4 sets of control electronics. Ferrari come out as looking super reliable in the percentages thanks to Manor not leaving the garage and not putting miles on any of their components in Melbourne. EDIT: Oh yeah there's Honda too... well they went on a nice Sunday drive putting as little stress on the components as possible. It looks like Magnussen's failure on the way to the grid has not required McLaren to change the engine, though.