AMG’s straight six!

New CLS53 de­buts 320kW-plus elec­tri­cally as­sisted in­line-six

Motor (Australia) - - THE NEWS -

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

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