Second half of 2026 ProKart Challenge begins in Sonoma

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The second half of the 2026 ProKart Challenge began over the August 15-16 weekend at Sonoma Raceway. The Sonoma, California circuit welcomed the series for the second of back-to-back trips, hosting the fourth round of the season championship on the ‘Reverse National’ layout. Picture-perfect weather greeted the nearly 160 entries across 11 categories for the weekend.

Rotax E20 ahead of RMC Euro Trophy season final in Trinec

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The Rotax MAX Challenge Euro Trophy is entering its final stretch. At the season finale in Třinec, Czech Republic, from September 10 to 13, the championships will not only be decided in the classic Rotax categories. The Rotax E20 categories will once again be part of the international race weekend, adding a unique dimension to the grid with their all-electric powertrain.

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