The BMW Individual colour Ametrine Metallic debuted on the massive X7 SUV. But it wasn't until the all-new M8 Competition Gran Coupe adorned the purple-ish hue later in the year that people (read: we) began to take notice. The deep shade draped atop the sleek lines of the 625-bhp four-door do the M8 serious justice. Though if you really want it, it'll cost you £1,065. That's a lot when Marina Bay Blue is free...