http://www.autoexpress.co.uk/bmw/4-s...ts-2016-review
The new BMW M4 GTS may cost twice the price of the standard car, but its remarkable on-track ability, enormous performance and sheer exclusivity go a long way to making sense of that eye-watering price. Far from being a lightly modified M4, the GTS is a thorough rework of the base model, and it shows that BMW’s M division has lost none of its old magic. Of course, our full verdict will come when we drive the car on UK roads, but if you can get your hands on a GTS now, we’re sure you won’t be disappointed.