The Three Peaks Mountain Snowflake (3PMSF) has been a testament to achievement since its development in 1999. Tires wearing this symbol indicate that they have been tested for acceleration in moderately compressed snow, and 3PMSF tires have been tested to accelerate at least 110 percent. Measures the traction of all-season standard tires. Now it’s time to test the brakes…
Source: Car and Driver