Lewis Hamilton and Valtteri Bottas will battle Red Bull Racing this weekend with new engines. Both drivers have put in their third and final power unit at the Spa-Francorchamps circuit. Logically, the changes are not accompanied by grid penalties. Hamilton and Bottas will drive this weekend with a new exhaust, MGU-H, MGH-K and turbocharger. The engine development for this season is as good as frozen, so it doesn't look like Mercedes will have a lot of extra horsepower immediately. What could be the case though, is that the engine is more reliable now, which means it can be used for a longer period of time. Especially on Sundays that could be an advantage. The customer teams will also...
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