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Phase four power unit

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F1: Button and Alonso both get engine penalties for Mexico

Formula 1

F1: Button and Alonso both get engine penalties for Mexico

By alley - Oct 29, 2015, 3:46 PM ET

McLaren Formula 1 driver Jenson Button will receive a 50-place grid penalty for this weekend's Mexican Grand Prix as he faces a double Honda engine change.Honda and McLaren have concluded their investigations into the issue that caused Fernando Alonso to slip from a points-scoring finish in last Sunday's race at...

F1: McLaren investigates Alonso's engine

Formula 1

F1: McLaren investigates Alonso's engine

By alley - Oct 26, 2015, 12:31 PM ET

McLaren and Honda are investigating the cause of Fernando Alonso's engine problem during the United States Grand Prix, which may have a knock-on effect for Jenson Button in Mexico this weekend.Alonso was robbed of a points finish by an issue with the new "phase four" power unit raced for the...

F1: Mercedes feared compromising customers

Formula 1

F1: Mercedes feared compromising customers

By alley - Oct 19, 2015, 10:01 AM ET

Mercedes says its decision not to supply its customers with its latest spec of Formula 1 engine for the remainder of the season is out of concern for compromising their performance.The German manufacturer introduced its "phase four" power unit at the Italian Grand Prix in September, using its remaining seven...

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