It’s almost silent, but when you do hear it rev, the noise is deep and ... you’re driving the 640i to experience its not-so-impressive side. The BMW 6-series GT range starts from £46,810.

All three engines come from BMW ... 640i xDrive counterpart. The diesel’s stronger torque not only enhances the driving experience but has the performance to get the best of the 6 GT’s ...

While the Audi A7 and Mercedes CLS both feel more agile and entertaining as you drive through corners, the 6 GT ... the 640i with twin-turbo 3.0-litre six-cylinder motor and 340PS that’s enough to ...