The GT Cup grid is taking shape as Group GTH is boosted by the arrival of Adam Hatfield who will partner Chris Murphy in Whitebridge Motorsport’s Aston Martin Vantage GT4. 20-year old Hatfield has competed in the Clio Cup Race Series and raced for half of the season in British GT last year in a Ginetta G55 GT4, with a fifth-place finish in class at Brands Hatch. He started this year with an impressive podium in the Dubai 24 Hours after winning in class at the Imola 12 Hours i