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After half a century’s worth of events on public roads were brought to an abrupt halt in 1970, Autodromo Internazionale del Mugello was constructed in 1973 and opened a year later to bring premier racing events back to the area. It quickly became host to major sports car events, lower-level open-wheel series, and grand prix motorcycle racing, for which it has hosted the Italian motorcycle Grand Prix for the past 30 years. In the COVID-19 impacted 2020 World Driver’s Championship, it hosted the series for the first time with the Tuscan Grand Prix.

Mugello features two layouts: its 3.259-mile, 15-turn Grand Prix layout, and a 1.4-mile Short configuration. Both start with its lengthy front straightaway and go into the 180-degree San Donato right-hander before heading into Luco and Poggio Secco. The track has been owned by Scuderia Ferrari since 1988, which uses it for both testing and the Ferrari Challenge Finali Mondiali; the Tuscan Grand Prix in 2020 marked its 1000th Grand Prix event.

Known as the “World’s Fastest Quarter Mile Oval,” Slinger, Wisconsin’s Slinger Speedway is the quintessential bullring short track. Opened in 1948, its defining characteristic is its high-banked corners, which reach an imposing 33 degrees on each end. That steep banking allows racers to post blazing fast laps, including Jeff Bloom’s 9.908-second time in 2010-the first quarter-mile oval lap record in history to break the 10-second barrier.

Formerly a flat, clay track, Slinger was reconfigured for the 1974 season into its current paved and high-banked state. Its most famous race each year is the Slinger Nationals, a 200-mile Super Late Model race that has been won by some of the biggest names in short track racing and NASCAR alike; former Cup Series champion Matt Kenseth holds the record with eight wins between 1994 and 2019. Slinger also has a paved X running through its center to host Figure 8 events.