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Weight
The big changes here are obviously to Cadillac and Porsche. Cadillac has gained a huge 19kg – from 1040kg at Interlagos to 1059kg for COTA. Porsche, meanwhile, has gone from its Brazilian 1053kg to 1065kg, just 4kg lighter than Ferrari and Toyota, who both remain on 1069kg.
Elsewhere, BMW have lost 2kg, and Alpine have gained 1kg. Peugeot and Aston Martin remain on the minimum weight, 1030kg.
Power (before 250kph)
There aren't that many changes on the power side of things either. The biggest change will hit Porsche, 13kW down on Interlagos. BMW will lose 8kW, with Alpine losing 6kW, Interlagos race winners losing 5kW, and Toyota losing 1kW.
The Ferrari will remain the least powerful car on 480kW, while Aston Martin and Peugeot will stay as the most powerful cars allowed by the regulations at 520KW apiece.
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Power (after 250kph)
As is common lately, the Aston Martin Valkyrie will be the most powerful car after 250kph. The Toyota will be only slightly below that, with a big gap below these two, around 13kW, to the Cadillac.
The Ferrari is next, followed by the Porsche, then the BMW. They're followed by the two French cars, the Alpine and the Peugeot.
Energy per stint
Every team sees an adjustment in their energy per stint for COTA. That said, the adjustments are fairly small, with all of them reducing the energy available for each stint.
BMW will lose 5MJ, with Porsche losing 4MJ. Ferrari will lose 3MJ. Alpine, Cadillac, Peugeot and Toyota will lose 2MJ each. And Aston Martin, having never raced the Valkyrie at COTA, will lose 1MJ.
Power-to-weight ratios
As ever, the easiest way to display all this is in power-to-weight ratios.
The data shows that the Toyota, BMW, and Alpine are all within a window of 0.002kW/kg, in the middle of the table.
Cadillac and Porsche have dropped massively from Interlagos – not surprising considering the weight added and the power lost for both cars. The Ferrari stays the same as at Interlagos, level with Cadillac 0.0449kW/kg.
The Peugeot and the Aston Martin remain at the top of the table, but we know from previous races that this doesn't necessarily mean good performance. That said, both are improving.
Only Endurance's prediction? A Toyota win. BMW and Alpine may be competitive too, but Toyota's experience will outsmart both.
Feature image: DPPI / WEC
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