Autocar reports:
A new range of more powerful, torquier and more frugal V6 and V8 petrol engines will be introduced across the Mercedes range from autumn this year.
The headline changes for the V6 are a new narrow-angle block and for the V8 a reduction in capacity mated to twin-turbo induction.
Both vee-engines also get third-generation direct injection with piezo-electric injectors, revised combustion, multi-spark ignition and low-friction ancillaries to cut fuel consumption by up to 24 percent.
Major changes are wrought to the V8, which gets a new, smaller-capacity block of 4.6 litres, reduced by 15 per cent from the 5.4 litres of its predecessor, together with the addition of twin turbochargers, arranged with one blower for each bank of cylinders...
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