Listen to this article UK firm Apex Circuit Design has laid out the 3.36-mile anticlockwise circuit – which winds around the Hard Rock Stadium in Miami Gardens – with an expected lap time of 1m35s and an average speed of just under 135mph. It is expected to produce overtaking opportunities in at least three points around the 19-turn circuit, with one of the more likely spots being the approach to the Turn 17 hairpin at the end of a 1.2km, 199mph straight. “Racing comes first and foremost in our company’s design philosophy,” said Apex design engineer Charles Metcalfe, who has been involved with the project since planning commencement. “As a company our ethos is to challenge all of the F1 teams, their cars, their race engineers and, of course, their drivers. “So we focus on corner sequences, a dynamic range of corners – from fast-speed to low-speed – and to achieve this we do a lot of simulation work and intentionally ensure there ar …