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As the F1 circus ready for the final Grand Prix of the 2017 season, the report reveals – the maximum number of complete Power Units (PU) each driver has is four for the entire season. All Mercedes powered customers – Force India, Williams F1 and Ferrari powered customers – Haas F1, Sauber F1 is within the four PU total.

Lewis Hamilton already fit fresh parts to his car including a new power unit after Brazilian Grand Prix Qualifying Q1 crash.

In Abu Dhabi Grand Prix – Toro Rosso rookie, Brendon Hartley the only man handed a 10-place grid penalty for having yet another MGU-H fitted to his Renault power unit.

2017 Engine unit elements used so far – Abu Dhabi GP

Driver
Car
ICE
TC
MGU-H
MGU-K
ES
CE
Lewis HamiltonMercedes 5
5
5
4
3
3
Valtteri BottasMercedes 4
4
4
4
3
3
Daniel RicciardoRed Bull 6
6
8
3
4
4
Max VerstappenRed Bull 6
5
6
3
4
4
Sebastian Vettel
Ferrari 5
5
5
4 4
4
Kimi Raikkonen
Ferrari 4
4
4
4
4
4
Sergio PerezForce India 4
4
4
4
2
2
Esteban Ocon
Force India 4
4
4
4
3
3
Felipe MassaWilliams 4
4
4
4
3
2
Lance Stroll
Williams 4
4
4
4
2
2
Fernando AlonsoMcLaren 9
11
11
8
7
6
Stoffel VandoorneMcLaren 10
12
12
9
7
7
Brendon HartleyToro Rosso 7
6
8 3
5
5
Pierre GaslyToro Rosso 5
7
9
3
4
5
Romain Grosjean
Haas 4
4
4
4
4
4
Kevin MagnussenHaas 4
4
4 4
4
4
Nico HulkenbergRenault 5
5
6
4
4
4
Carlos Sainz Renault 5
6
6 3
4
4
Marcus Ericsson
Sauber 4
4
4
4
4
4
Pascal Wehrlein
Sauber 4
4
4
4
4
4

The power unit is deemed to consist of six separate elements: ICE = Internal Combustion Engine / TC = Turbo Charger / MGU-H = Motor Generator Unit – Heat / MGU-K = Motor Generator Unit – Kinetic / ES = Energy Store / CE = Control Electronics

What the sporting regulations say:

Unless he drives for more than one team, each driver may use no more than four power units during a championship season. The only exception is where the power unit is provided by a manufacturer or supplier taking part in its first championship season, in which case up to five may be used by a driver.

Each driver is permitted to use only four of each of the above six elements during a championship season and any combination of them may be fitted to a car at any one time. Should a driver use more than four of any of the six power unit elements during the course of a season, a grid penalty will be imposed.

The penalties imposed for using additional elements work thus: the first time a fifth of any of the elements is used, a ten-place grid penalty will be imposed. A five-place grid penalty will then be imposed the first time a fifth of any of the remaining elements is used. Likewise, the first time a sixth of any of the elements is used, a ten-place grid penalty will be imposed, and so on.

During any single event, if a driver introduces more than one of a power unit element that is subject to a grid penalty, only the last element fitted may be used at subsequent events without further penalty.

If a driver is replaced at any time during the season his replacement will be deemed to be the original driver for the purposes of assessing power unit usage.

Teams may only use homologated power units.

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