Hungarian GP, Iowa NASCAR, IMSA Road America and more. Here's what's on and when...

Nicolas Hamilton, the younger brother of Formula 1 world champion Lewis, will contest selected British Touring Car Championship rounds this season in an AmD Tuning Audi S3.The 22-year-old, who has cerebral palsy and raced in the BTCC-supporting Renault UK Clio Cup in 2012 and 2013, will contest five of the...