AMG’s straight six!
New CLS53 debuts 320kW-plus electrically assisted inline-six
MERCEDES-AMG’s model onslaught continues with the release of the CLS53, as does its diversification into new powertrains. Debuting at the Detroit Motor Show, the CLS53 uses a high-tech electrically assisted turbo straight-six.
The 3.0-litre turbocharged inlinesix produces 320kW/520Nm of its own accord, however, the ‘EQ Boost’ electric motor, fitted between the engine and transmission, adds an extra 16kW/250Nm, operates as a starter-alternator, generates power for the 48-volt electrical system and allows the use of an electric compressor to eradicate turbo lag.
Combine this grunt with a ninespeed automatic and all-wheel drive and the result is a seriously quick car, the 1905kg CLS53 motivated to 100km/h in just 4.5sec on its way to a limited top speed of 250km/h. Efficiency also benefits, Mercedes claiming fuel use of just 8.4L/100km on the combined cycle.
The chassis is more traditional Mercedes fare: multi-link suspension front and rear with air springs and three-mode adaptive dampers, while braking is taken care of by 370mm discs and fourpiston calipers at the front supported by 360mm discs and single-piston calipers at the rear.
Visually, the CLS53 can be identified by its twin-blade grille in silver chrome, which also adorns the front splitter and fins in the outer air intakes, while at the rear there are twin tailpipes and a boot spoiler.
Inside, a pair of widescreen displays dominate the dash with virtually every other surface covered with leather, aluminium or carbon and detailing the vast array of safety and driver assist systems could fill an encyclopaedia.
Expect a price tag of around $185,000 when the CLS53 lands in the second half of 2018.
E53 Coupe uses the same chassis and driveline as the CLS, but drops 10kg and shaves 0.1sec from the 0-100km/h time