While F1 cars like the McLaren MP4-28 have a removable flap on the rear wing, the P1 will reduce the angle on its massive rear spoiler by 23 percent. Activated by a button on the steering wheel ...

That McLaren was the MP4/5, and as the 1990 season dawned, the team unveiled an updated version, known as the MP4/5B – the car you see here. It would go on to take the drivers’ title in the ...