The Mercedes GLC is an SUV that's based on the company's popular C-class. As a rival to the Audi Q5, BMW X3 and Land Rover Discovery Sport, it needs to be very good indeed. Fortunately, as Rebecca Jackson discovers, it is. Visit the Telegraph Cars website for full reviews of the latest cars on sale: http://www.telegraph.co.uk/cars/ Mercedes GLC review http://www.telegraph.co.uk/cars/mercedes-benz/mercedes-glc-review/ BMW X3 review http://www.telegraph.co.uk/cars/bmw/bmw-x3-review/ Land Rover Discovery Sport review https://www.youtube.com/watch?v=bn9-Qt8heX4 Audi Q5 review http://www.telegraph.co.uk/cars/audi/audi-q5-review/ Follow Telegraph Cars on Twitter https://twitter.com/TeleCars Read the latest car news: http://www.telegraph.co.uk/cars/news/