1975 Champion Spark Plug 400

The 1975 Champion Spark Plug 400 was a NASCAR Winston Cup Series race that took place on August 24, 1975, at Michigan International Speedway in Brooklyn, Michigan. Historic flyers were sold for this race at a price of $1.50 per copy ($6.60 when adjusted for inflation). The cost of admission to this race was relatively cheap; children got in for $5 USD ($21.99 when adjusted for inflation) while adults got decent seats for $10 USD ($43.98 when adjusted for inflation).

1975 Champion Spark Plug 400

The 1975 Champion Spark Plug 400 was a NASCAR Winston Cup Series race that took place on August 24, 1975, at Michigan International Speedway in Brooklyn, Michigan. Historic flyers were sold for this race at a price of $1.50 per copy ($6.60 when adjusted for inflation). The cost of admission to this race was relatively cheap; children got in for $5 USD ($21.99 when adjusted for inflation) while adults got decent seats for $10 USD ($43.98 when adjusted for inflation).