Two new performance SUVs from Mercedes-AMG have been revealed - with the GLC 63 4MATIC+ available as either a regular SUV or as an SUV-Coupe with a sloping fastback roofline. The ’S’ trim level comes with more equipment and a bit more power, but all cars are fitted with a 9-speed AMG transmission and 4MATIC+ all-wheel drive. Under the bonnet is the same 4.0-litre V8 as fitted to the AMG GT sports car, delivering up to 510 bhp for a 0-62mph time of under 4-seconds.