Red Bull are "the benchmark" in Formula 1 as pre-season testing begins in earnest in Bahrain, says Mercedes team boss Toto ...

The FAA said the area around the Texas border town would be closed for "special security reasons".

Lewis Hamilton says that "none of the fans are going to understand" some of the new rules introduced into F1 this year.

About 1 million people are living with multiple sclerosis in the U.S., and about 10% of those have PPMS, making it the least common form of the disease.