The CLS53 and E53 Coupe and Cabriolet are powered by a new 3.0-litre in-line six-cylinder twin-turbocharged petrol engine and will crown their individual line-ups with Mercedes-AMG confirming there are no plans for full blown 63-series models in the E-Class Coupe, E-Class Cabriolet or new third-generation CLS ranges.
The trio is powered by a newly engineered style of turbocharging that combines an electric compressor with a traditional exhaust gas turbocharger to increase torque output across the rev range.
“With the new 53-series models we are extending our portfolio in the first step towards a hybridized future,” says AMG chairman Tobias Moers.
The in-line unit, which already powers the facelifted S500, develops 320kW at 6100rpm and 520Nm of torque between 1800 and 5800rpm. By comparison, the more conventional twin-turbocharged 3.0-litre V6 used by the E43 saloon among other AMG models delivers 295kW and the same 520Nm of torque.
An integrated starter alternator helps boost performance, providing an additional 16kW and 250Nm of torque for brief periods, while also providing energy for a 48-volt electric system.
The new mild hybrid engine is mated to a nine-speed automatic transmission and fully-variable 4Matic+ all-wheel drive system that AMG plans to introduce across more models over time.
Performance is worthy of the AMG badge and the new driveline shoots the 1895kg E53 Coupe from a standstill to 100km/h in 4.4 seconds while the 1980kg Cabriolet and 1905kg CLS53 claim a 0-100km/h time of 5.3 seconds. All three new AMG models run to a limited top speed of 250km.
As a point of reference, the existing E43 saloon boasts a claimed 0-100km/h time of 4.7sec and the same 250km/h top speed.
Differentiating the CLS53, E53 Coupe and E53 Cabriolet from their standard siblings is a series of traditional AMG design elements, including a twin-blade grille, uniquely styled bumpers, wider sills and signature AMG tailpipes. The new models come as standard with 19-inch wheels, with 20-inch rims available as an option. Inside, there is a new AMG performance steering wheel among other unique interior styling touches.
The new models are planned to go on sale in Australia during the second-half of 2018 while pricing is yet to be confirmed.