The Würth 400 NASCAR Cup Series race is coming back to Dover Motor Speedway in 2025. America's best drivers will test their skills against the World's Fastest One-Mile Oval. The Würth 400 will be the 107th NASCAR Cup Series race at the high-banked, one-mile, concrete track. The Monster Mile is one of only 10 tracks in the country to host 100 or more NASCAR Cup Series races.