Isack Hadjar 'turned heads' in the post-season test at Abu Dhabi
Horner: "He was faster than Yuki in the test last week, which turned heads. He's definitely a raw talent, he needs a little bit of polishing. But he has the speed."
Horner: "He was faster than Yuki in the test last week, which turned heads. He's definitely a raw talent, he needs a little bit of polishing. But he has the speed."